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HuttenlocherTechnologies
Updated 11 h ago

Vulnerability database

Every flaw the U.S. government’s cybersecurity agency (CISA) has confirmed attackers are using, plus the new WordPress plugin and theme bugs published each day, sorted by what they mean for a small business. We refresh it twice a day. If you see something your website or office runs, tell us.

1,762exploited flaws on CISA’s list
34added in the last 30 days
343new WordPress flaws this week
390,080entries in the database

42 results

  • Oct 15, 2026A denial of service vulnerability exists in the XML parsing of multiple versions of OpenNMS Meridian and Horizon.CVE-2026-111252 · Other software · The OpenNMS Group · reported by security@opennms.comMedium 6.5

    A denial of service vulnerability exists in the XML parsing of multiple versions of OpenNMS Meridian and Horizon. OpenNMS parsed XML without an effective limit on entity expansion. A document with a DOCTYPE that declares internal entities can expand to a very large value and exhaust the server memory. An authenticated user with provisioning access can supply such a document through a requisition or foreign-source import, which includes a remote requisition URL that the server fetches and parses. Both deeply nested entities and a single large entity referenced many times cause the memory exhaustion. The fix caps the number of entity expansions for all XML parsing and rejects any DOCTYPE in requisition and foreign-source XML. The solution is to upgrade to Meridian 2024.3.14, 2025.0.11, 2026.0.1 and Horizon 36.0.5 or newer. Meridian and Horizon installation instructions state that they are intended for installation within an organization's private networks and should not be directly accessible from the Internet.

    Product
    Meridian
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Oct 15, 2026An authorization bypass vulnerability exists in the REST API of multiple versions of OpenNMS Meridian and Horizon.CVE-2026-111235 · Other software · The OpenNMS Group · reported by security@opennms.comCritical 9.1

    An authorization bypass vulnerability exists in the REST API of multiple versions of OpenNMS Meridian and Horizon. The /rest/** Spring Security filter chains authorize requests with intercept-url rules that name the HTTP method as an uppercase token, compare the method case-sensitively, and have no terminal deny rule. A request that uses a non-canonical (for example lowercase) method token matches no rule and is processed without authentication. A remote, unauthenticated attacker can read the monitored inventory and can create, modify, or delete resources through the REST API, which includes injecting events to fabricate or suppress alarms. The /rest/alarms chain has the same missing deny rule and discloses whether an alarm exists through a difference in the response. The fix adds a terminal deny rule to each REST filter chain. The solution is to upgrade to Meridian 2024.3.14, 2025.0.11, 2026.0.1 and Horizon 36.0.5 or newer. Meridian and Horizon installation instructions state that they are intended for installation within an organization's private networks and should not be directly accessible from the Internet.

    Product
    Meridian
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Sep 10, 2026A SQL injection vulnerability exists in the JasperReports-based reporting feature of multiple versions of OpenNMS Meridian and Horizon.CVE-2026-89089 · Other software · The OpenNMS Group · reported by security@opennms.comMedium 6.5

    A SQL injection vulnerability exists in the JasperReports-based reporting feature of multiple versions of OpenNMS Meridian and Horizon. A low-privileged authenticated user (ROLE_USER) can run the shipped, default-enabled online reports "Maintenance contracts expired" (AssetManagementMaintExpired) and "Maintenance contracts strategy" (AssetManagementMaintStrategy) via the reporting REST API (POST /rest/reports/{id}) and supply a DATE_FORMAT parameter that the report templates substitute literally, un-escaped, into their SQL queries. This lets an attacker execute arbitrary SQL against the OpenNMS database and read arbitrary data, including database-stored secrets such as provisioning and notification credentials and SNMP community strings. The solution is to upgrade to Meridian 2024.3.13, 2025.0.10 and Horizon 36.0.4 or newer. Meridian and Horizon installation instructions state that they are intended for installation within an organization's private networks and should not be directly accessible from the Internet.

    Product
    Meridian
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Sep 10, 2026An XML External Entity (XXE) vulnerability exists in the XML collector of multiple versions of OpenNMS Meridian and Horizon.CVE-2026-19596 · Other software · The OpenNMS Group · reported by security@opennms.comMedium 5.9

    An XML External Entity (XXE) vulnerability exists in the XML collector of multiple versions of OpenNMS Meridian and Horizon. When OpenNMS collects XML from a source whose response is attacker-controlled (for example a compromised monitored host or an HTTP man-in-the-middle position), the collector's XML parser resolves external entities and external DTDs. This allows an attacker to read files accessible to the OpenNMS service account, including database credentials, and to induce out-of-band requests. The solution is to upgrade to Meridian 2024.3.13, 2025.0.10 and Horizon 36.0.4 or newer. Meridian and Horizon installation instructions state that they are intended for installation within an organization's private networks and should not be directly accessible from the Internet.

    Product
    Meridian
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Sep 10, 2026A missing authorization vulnerability in OpenNMS Horizon allows configuration changes without authentication.CVE-2026-89054 · Other software · The OpenNMS Group · reported by security@opennms.comHigh 8.2

    A missing authorization vulnerability in OpenNMS Horizon allows configuration changes without authentication. The Spring Security policy for the /api/v2 REST API defines authorization rules for every HTTP method except PATCH, so the shipped @PATCH configuration endpoints for event configuration and SNMP data collection (which enable and disable event definitions and data-collection sources) are reachable with no authorization enforced. An unauthenticated attacker able to reach the web UI can disable event definitions and SNMP data collection, suppressing event and alarm generation and stopping metric collection - silently degrading monitoring and detection - with the change persisted and reloaded into the running system. The solution is to upgrade to Horizon 36.0.4 or newer. Meridian and Horizon installation instructions state that they are intended for installation within an organization's private networks and should not be directly accessible from the Internet.

    Product
    Horizon
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 13, 2026An incorrect authorization check in the v2 Alarm REST API in OpenNMS Meridian and Horizon allows a low-privileged authenticated user (ROLE_REST) to acknowledge,CVE-2026-19182 · Other software · The OpenNMS Group · reported by security@opennms.comMedium 4.3

    An incorrect authorization check in the v2 Alarm REST API in OpenNMS Meridian and Horizon allows a low-privileged authenticated user (ROLE_REST) to acknowledge, escalate, or clear alarms recorded as an arbitrary username, and, when also assigned ROLE_READONLY, to modify alarm state despite the read-only restriction. A credential check that should restrict these operations is guarded by an inverted condition, so it never executes for a real (non-blank) username. This can potentially allow an attacker to compromise the integrity of alarm state and audit records. The solution is to upgrade to Meridian 2024.3.12, 2025.0.9 and Horizon 36.0.3 or newer. Meridian and Horizon installation instructions state that they are intended for installation within an organization's private networks and should not be directly accessible from the Internet.

    Product
    Meridian
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 13, 2026A JEXL expression sandbox bypass exists in multiple versions of OpenNMS Meridian and Horizon.CVE-2026-19135 · Other software · The OpenNMS Group · reported by security@opennms.comMedium 5.4

    A JEXL expression sandbox bypass exists in multiple versions of OpenNMS Meridian and Horizon. A low-privileged authenticated user can submit a crafted expression to the Measurements REST API that escapes the sandbox and loads arbitrary Java classes on the server. This can potentially allow an attacker to gain access to confidential information and compromise integrity. The solution is to upgrade to Meridian 2024.3.12, 2025.0.9 and Horizon 36.0.3 or newer. Meridian and Horizon installation instructions state that they are intended for installation within an organization's private networks and should not be directly accessible from the Internet.

    Product
    Meridian
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 26, 2025Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in OpenNMS Horizon and Meridian applications allows SQL InjecCVE-2025-53122 · Other software · The OpenNMS Group · reported by security@opennms.comMedium 6.9

    Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in OpenNMS Horizon and Meridian applications allows SQL Injection.  Users should upgrade to Meridian 2024.2.6 or newer, or Horizon 33.16 or newer. Meridian and Horizon installation instructions state that they are intended for installation within an organization's private networks and should not be directly accessible from the Internet.

    Product
    Horizon
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 26, 2025Multiple stored XSS were found on different nodes with unsanitized parameters in OpenMNS Horizon 33.0.8 and versions earlier than 33.1.6 on multiple platforms tCVE-2025-53121 · Other software · The OpenNMS Group · reported by security@opennms.comMedium 6.9

    Multiple stored XSS were found on different nodes with unsanitized parameters in OpenMNS Horizon 33.0.8 and versions earlier than 33.1.6 on multiple platforms that allow an attacker to store on database and then inject HTML and/or Javascript on the page. The solution is to upgrade to Horizon 33.1.6, 33.1.7 or Meridian 2024.2.6, 2024.2.7 or newer. Meridian and Horizon installation instructions state that they are intended for installation within an organization's private networks and should not be directly accessible from the Internet. OpenNMS thanks Fábio Tomé for reporting this issue.

    Product
    Horizon
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Nov 16, 2023 Cross-site scripting in bootstrap.jsp in multiple versions of OpenNMS Meridian and Horizon allows an attacker access to confidential session information.CVE-2023-40314 · Other software · The OpenNMS Group · reported by security@opennms.comMedium 5.8

    Cross-site scripting in bootstrap.jsp in multiple versions of OpenNMS Meridian and Horizon allows an attacker access to confidential session information. The solution is to upgrade to Horizon 32.0.5 or newer and Meridian 2023.1.9 or newer Meridian and Horizon installation instructions state that they are intended for installation within an organization's private networks and should not be directly accessible from the Internet. OpenNMS thanks Moshe Apelbaum for reporting this issue.

    Product
    Horizon
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 23, 2023In OpenMNS Horizon 31.0.8 and versions earlier than 32.0.2, the file editor which is accessible to any user with ROLE_FILESYSTEM_EDITOR privileges is vulnerableCVE-2023-40612 · Other software · The OpenNMS Group · reported by security@opennms.comMedium 5.3

    In OpenMNS Horizon 31.0.8 and versions earlier than 32.0.2, the file editor which is accessible to any user with ROLE_FILESYSTEM_EDITOR privileges is vulnerable to XXE injection attacks. The solution is to upgrade to Meridian 2023.1.5 or Horizon 32.0.2 or newer. Meridian and Horizon installation instructions state that they are intended for installation within an organization's private networks and should not be directly accessible from the Internet. OpenNMS thanks Erik Wynter for reporting this issue.

    Product
    Horizon
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 17, 2023In OpenMNS Horizon 31.0.8 and versions earlier than 32.0.2 and related Meridian versions, any user that has the ROLE_FILESYSTEM_EDITOR can easily escalate theirCVE-2023-40315 · Other software · The OpenNMS Group · reported by security@opennms.comMedium 5.3

    In OpenMNS Horizon 31.0.8 and versions earlier than 32.0.2 and related Meridian versions, any user that has the ROLE_FILESYSTEM_EDITOR can easily escalate their privileges to ROLE_ADMIN or any other role. The solution is to upgrade to Meridian 2023.1.5 or Horizon 32.0.2 or newer. Meridian and Horizon installation instructions state that they are intended for installation within an organization's private networks and should not be directly accessible from the Internet. OpenNMS thanks Erik Wynter for reporting this issue.

    Product
    Horizon
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 17, 2023A BeanShell interpreter in remote server mode runs in OpenMNS Horizon versions earlier than 32.0.2 and in related Meridian versions which could allow arbitrary CVE-2023-40313 · Other software · The OpenNMS Group · reported by security@opennms.comHigh 7.1

    A BeanShell interpreter in remote server mode runs in OpenMNS Horizon versions earlier than 32.0.2 and in related Meridian versions which could allow arbitrary remote Java code execution. The solution is to upgrade to Meridian 2023.1.6, 2022.1.19, 2021.1.30, 2020.1.38 or Horizon 32.0.2 or newer. Meridian and Horizon installation instructions state that they are intended for installation within an organization's private networks and should not be directly accessible from the Internet.

    Product
    Horizon
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 14, 2023Multiple reflected XSS were found on different JSP files with unsanitized parameters in OpenMNS Horizon 31.0.8 and versions earlier than 32.0.2 on multiple platCVE-2023-40312 · Other software · The OpenNMS Group · reported by security@opennms.comMedium 6.7

    Multiple reflected XSS were found on different JSP files with unsanitized parameters in OpenMNS Horizon 31.0.8 and versions earlier than 32.0.2 on multiple platforms that an attacker can modify to craft a malicious XSS payload. The solution is to upgrade to Meridian 2023.1.6, 2022.1.19, 2021.1.30, 2020.1.38 or Horizon 32.0.2 or newer. Meridian and Horizon installation instructions state that they are intended for installation within an organization's private networks and should not be directly accessible from the Internet. OpenNMS thanks Jordi Miralles Comins for reporting this issue.

    Product
    Horizon
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 14, 2023Multiple stored XSS were found on different JSP files with unsanitized parameters in OpenMNS Horizon 31.0.8 and versions earlier than 32.0.2 on multiple platforCVE-2023-40311 · Other software · The OpenNMS Group · reported by security@opennms.comMedium 6.7

    Multiple stored XSS were found on different JSP files with unsanitized parameters in OpenMNS Horizon 31.0.8 and versions earlier than 32.0.2 on multiple platforms that allow an attacker to store on database and then load on JSPs or Angular templates. The solution is to upgrade to Meridian 2023.1.6, 2022.1.19, 2021.1.30, 2020.1.38 or Horizon 32.0.2 or newer. Meridian and Horizon installation instructions state that they are intended for installation within an organization's private networks and should not be directly accessible from the Internet. OpenNMS thanks Jordi Miralles Comins for reporting this issue.

    Product
    Horizon
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 14, 2023The Horizon REST API includes a users endpoint in OpenMNS Horizon 31.0.8 and versions earlier than 32.0.2 on multiple platforms is vulnerable to elevation of prCVE-2023-0872 · Other software · The OpenNMS Group · reported by security@opennms.comHigh 8.2

    The Horizon REST API includes a users endpoint in OpenMNS Horizon 31.0.8 and versions earlier than 32.0.2 on multiple platforms is vulnerable to elevation of privilege. The solution is to upgrade to Meridian 2023.1.6, 2022.1.19, 2021.1.30, 2020.1.38 or Horizon 32.0.2 or newer. Meridian and Horizon installation instructions state that they are intended for installation within an organization's private networks and should not be directly accessible from the Internet. OpenNMS thanks Erik Wynter for reporting this issue.

    Product
    Horizon
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 11, 2023XXE injection in /rtc/post/ endpoint in OpenMNS Horizon 31.0.8 and versions earlier than 32.0.2 on multiple platforms is vulnerable to XML external entity (XXE)CVE-2023-0871 · Other software · The OpenNMS Group · reported by security@opennms.comMedium 5.4

    XXE injection in /rtc/post/ endpoint in OpenMNS Horizon 31.0.8 and versions earlier than 32.0.2 on multiple platforms is vulnerable to XML external entity (XXE) injection, which can be used for instance to force Horizon to make arbitrary HTTP requests to internal and external services. The solution is to upgrade to Meridian 2023.1.6, 2022.1.19, 2021.1.30, 2020.1.38 or Horizon 32.0.2 or newer. Meridian and Horizon installation instructions state that they are intended for installation within an organization's private networks and should not be directly accessible from the Internet. OpenNMS thanks Erik Wynter and Moshe Apelbaum for reporting this issue.

    Product
    Horizon
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Mar 22, 2023A form can be manipulated with cross-site request forgery in multiple versions of OpenNMS Meridian and Horizon.CVE-2023-0870 · Other software · The OpenNMS Group · reported by security@opennms.comHigh 8.1

    A form can be manipulated with cross-site request forgery in multiple versions of OpenNMS Meridian and Horizon. This can potentially allow an attacker to gain access to confidential information and compromise integrity. The solution is to upgrade to Meridian 2023.1.1 or Horizon 31.0.6 or newer. Meridian and Horizon installation instructions state that they are intended for installation within an organization's private networks and should not be directly accessible from the Internet.

    Product
    Meridian
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Feb 23, 2023Cross-site scripting in outage/list.htm in multiple versions of OpenNMS Meridian and Horizon allows an attacker access to confidential session information.CVE-2023-0869 · Other software · The OpenNMS Group · reported by security@opennms.comMedium 5.8

    Cross-site scripting in outage/list.htm in multiple versions of OpenNMS Meridian and Horizon allows an attacker access to confidential session information. The solution is to upgrade to Meridian 2023.1.0 or newer, or Horizon 31.0.4 or newer. Meridian and Horizon installation instructions state that they are intended for installation within an organization's private networks and should not be directly accessible from the Internet.

    Product
    Meridian
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Feb 23, 2023Reflected cross-site scripting in graph results in multiple versions of OpenNMS Meridian and Horizon could allow an attacker access to steal session cookies.CVE-2023-0868 · Other software · The OpenNMS Group · reported by security@opennms.comMedium 6.7

    Reflected cross-site scripting in graph results in multiple versions of OpenNMS Meridian and Horizon could allow an attacker access to steal session cookies. Users should upgrade to Meridian 2023.1.0 or newer, or Horizon 31.0.4. Meridian and Horizon installation instructions state that they are intended for installation within an organization's private networks and should not be directly accessible from the Internet.

    Product
    Meridian
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Feb 23, 2023Multiple stored and reflected cross-site scripting vulnerabilities in webapp jsp pages in multiple versions of OpenNMS Meridian and Horizon could allow an attacCVE-2023-0867 · Other software · The OpenNMS Group · reported by security@opennms.comMedium 6.7

    Multiple stored and reflected cross-site scripting vulnerabilities in webapp jsp pages in multiple versions of OpenNMS Meridian and Horizon could allow an attacker access to confidential session information. Users should upgrade to Meridian 2023.1.0 or newer, or Horizon 31.0.4. Meridian and Horizon installation instructions state that they are intended for installation within an organization's private networks and should not be directly accessible from the Internet.

    Product
    Meridian
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Feb 23, 2023Potential Insertion of Sensitive Information into Jetty Log Files in multiple versions of OpenNMS Meridian and Horizon could allow disclosure of usernames and pCVE-2023-0815 · Other software · The OpenNMS Group · reported by security@opennms.comMedium 6.8

    Potential Insertion of Sensitive Information into Jetty Log Files in multiple versions of OpenNMS Meridian and Horizon could allow disclosure of usernames and passwords if the logging level is set to debug. Users should upgrade to Meridian 2023.1.0 or newer, or Horizon 31.0.4. Meridian and Horizon installation instructions state that they are intended for installation within an organization's private networks and should not be directly accessible from the Internet.

    Product
    Meridian
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Feb 22, 2023Unauthenticated, stored cross-site scripting in the display of alarm reduction keys in multiple versions of OpenNMS Horizon and Meridian could allow an attackerCVE-2023-0846 · Other software · The OpenNMS Group · reported by security@opennms.comMedium 6.7

    Unauthenticated, stored cross-site scripting in the display of alarm reduction keys in multiple versions of OpenNMS Horizon and Meridian could allow an attacker access to confidential session information. Users should upgrade to Meridian 2023.1.0 or newer, or Horizon 31.0.4. Meridian and Horizon installation instructions state that they are intended for installation within an organization's private networks and should not be directly accessible from the Internet.

    Product
    Horizon
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Sep 24, 2021OpenNMS version 18.0.1 and prior are vulnerable to a stored XSS issue due to insufficient filtering of SNMP agent supplied data.CVE-2016-6556 · Other software · OpenNMS · reported by cve@rapid7.comHigh 7.1

    OpenNMS version 18.0.1 and prior are vulnerable to a stored XSS issue due to insufficient filtering of SNMP agent supplied data. By creating a malicious SNMP 'sysName' or 'sysContact' response, an attacker can store an XSS payload which will trigger when a user of the web UI views the data. This issue was fixed in version 18.0.2, released on September 20, 2016.

    Product
    OpenNMS
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Sep 24, 2021OpenNMS version 18.0.1 and prior are vulnerable to a stored XSS issue due to insufficient filtering of SNMP trap supplied data.CVE-2016-6555 · Other software · OpenNMS · reported by cve@rapid7.comHigh 7.1

    OpenNMS version 18.0.1 and prior are vulnerable to a stored XSS issue due to insufficient filtering of SNMP trap supplied data. By creating a malicious SNMP trap, an attacker can store an XSS payload which will trigger when a user of the web UI views the events list page. This issue was fixed in version 18.0.2, released on September 20, 2016.

    Product
    OpenNMS
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 1, 2021In OpenNMS Horizon, versions opennms-1-0-stable through opennms-27.1.0-1; OpenNMS Meridian, versions meridian-foundation-2015.1.0-1 through meridian-foundation-CVE-2021-25932 · Other software · Opennms · reported by vulnerabilitylab@mend.ioMedium 5.4

    In OpenNMS Horizon, versions opennms-1-0-stable through opennms-27.1.0-1; OpenNMS Meridian, versions meridian-foundation-2015.1.0-1 through meridian-foundation-2019.1.18-1; meridian-foundation-2020.1.0-1 through meridian-foundation-2020.1.6-1 are vulnerable to Stored Cross-Site Scripting, since the function `validateFormInput()` performs improper validation checks on the input sent to the `userID` parameter. Due to this flaw an attacker could inject an arbitrary script which will be stored in the database.

    Product
    Meridian
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 25, 2021In OpenNMS Horizon, versions opennms-17.0.0-1 through opennms-27.1.0-1; OpenNMS Meridian, versions meridian-foundation-2015.1.0-1 through meridian-foundation-20CVE-2021-25935 · Other software · Opennms · reported by vulnerabilitylab@mend.ioMedium 5.4

    In OpenNMS Horizon, versions opennms-17.0.0-1 through opennms-27.1.0-1; OpenNMS Meridian, versions meridian-foundation-2015.1.0-1 through meridian-foundation-2019.1.18-1; meridian-foundation-2020.1.0-1 through meridian-foundation-2020.1.7-1 are vulnerable to Stored Cross-Site Scripting, since the function `add()` performs improper validation checks on the input sent to the `foreign-source` parameter. Due to this flaw an attacker could bypass the existing regex validation and inject an arbitrary script which will be stored in the database.

    Product
    Horizon
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 25, 2021In OpenNMS Horizon, versions opennms-18.0.0-1 through opennms-27.1.0-1; OpenNMS Meridian, versions meridian-foundation-2015.1.0-1 through meridian-foundation-20CVE-2021-25934 · Other software · Opennms · reported by vulnerabilitylab@mend.ioMedium 5.4

    In OpenNMS Horizon, versions opennms-18.0.0-1 through opennms-27.1.0-1; OpenNMS Meridian, versions meridian-foundation-2015.1.0-1 through meridian-foundation-2019.1.18-1; meridian-foundation-2020.1.0-1 through meridian-foundation-2020.1.7-1 are vulnerable to Stored Cross-Site Scripting, since the function `createRequisitionedNode()` does not perform any validation checks on the input sent to the `node-label` parameter. Due to this flaw an attacker could inject an arbitrary script which will be stored in the database.

    Product
    Horizon
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 20, 2021In OpenNMS Horizon, versions opennms-1-0-stable through opennms-27.1.0-1; OpenNMS Meridian, versions meridian-foundation-2015.1.0-1 through meridian-foundation-CVE-2021-25933 · Other software · Opennms · reported by vulnerabilitylab@mend.ioMedium 4.8

    In OpenNMS Horizon, versions opennms-1-0-stable through opennms-27.1.0-1; OpenNMS Meridian, versions meridian-foundation-2015.1.0-1 through meridian-foundation-2019.1.18-1; meridian-foundation-2020.1.0-1 through meridian-foundation-2020.1.6-1 are vulnerable to Stored Cross-Site Scripting, since the function `validateFormInput()` performs improper validation checks on the input sent to the `groupName` and `groupComment` parameters. Due to this flaw, an authenticated attacker could inject arbitrary script and trick other admin users into downloading malicious files which can cause severe damage to the organization using opennms.

    Product
    Horizon
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 20, 2021In OpenNMS Horizon, versions opennms-1-0-stable through opennms-27.1.0-1; OpenNMS Meridian, versions meridian-foundation-2015.1.0-1 through meridian-foundation-CVE-2021-25931 · Other software · Opennms · reported by vulnerabilitylab@mend.ioHigh 8.8

    In OpenNMS Horizon, versions opennms-1-0-stable through opennms-27.1.0-1; OpenNMS Meridian, versions meridian-foundation-2015.1.0-1 through meridian-foundation-2019.1.18-1; meridian-foundation-2020.1.0-1 through meridian-foundation-2020.1.6-1 are vulnerable to CSRF, due to no CSRF protection at `/opennms/admin/userGroupView/users/updateUser`. This flaw allows assigning `ROLE_ADMIN` security role to a normal user. Using this flaw, an attacker can trick the admin user to assign administrator privileges to a normal user by enticing him to click upon an attacker-controlled website.

    Product
    Horizon
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 20, 2021In OpenNMS Horizon, versions opennms-1-0-stable through opennms-27.1.0-1; OpenNMS Meridian, versions meridian-foundation-2015.1.0-1 through meridian-foundation-CVE-2021-25929 · Other software · Opennms · reported by vulnerabilitylab@mend.ioMedium 4.8

    In OpenNMS Horizon, versions opennms-1-0-stable through opennms-27.1.0-1; OpenNMS Meridian, versions meridian-foundation-2015.1.0-1 through meridian-foundation-2019.1.18-1; meridian-foundation-2020.1.0-1 through meridian-foundation-2020.1.6-1 are vulnerable to Stored Cross-Site Scripting since there is no validation on the input being sent to the `name` parameter in `noticeWizard` endpoint. Due to this flaw an authenticated attacker could inject arbitrary script and trick other admin users into downloading malicious files.

    Product
    Horizon
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 20, 2021In OpenNMS Horizon, versions opennms-1-0-stable through opennms-27.1.0-1; OpenNMS Meridian, versions meridian-foundation-2015.1.0-1 through meridian-foundation-CVE-2021-25930 · Other software · Opennms · reported by vulnerabilitylab@mend.ioMedium 4.3

    In OpenNMS Horizon, versions opennms-1-0-stable through opennms-27.1.0-1; OpenNMS Meridian, versions meridian-foundation-2015.1.0-1 through meridian-foundation-2019.1.18-1; meridian-foundation-2020.1.0-1 through meridian-foundation-2020.1.6-1 are vulnerable to CSRF, due to no CSRF protection, and since there is no validation of an existing user name while renaming a user. As a result, privileges of the renamed user are being overwritten by the old user and the old user is being deleted from the user list.

    Product
    Horizon
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Feb 17, 2021OpenNMS Meridian 2016, 2017, 2018 before 2018.1.25, 2019 before 2019.1.16, and 2020 before 2020.1.5, Horizon 1.2 through 27.0.4, and Newts <1.5.3 has Incorrect CVE-2021-3396 · Other software · Opennms · reported by MITREHigh 8.8

    OpenNMS Meridian 2016, 2017, 2018 before 2018.1.25, 2019 before 2019.1.16, and 2020 before 2020.1.5, Horizon 1.2 through 27.0.4, and Newts <1.5.3 has Incorrect Access Control, which allows local and remote code execution using JEXL expressions.

    Product
    Horizon
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jul 17, 2020OpenNMS is accessible via port 9443CVE-2020-1652 · Network & remote access · Juniper Networks · reported by sirt@juniper.netMedium 5.6

    OpenNMS is accessible via port 9443

    Product
    Junos Space
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 11, 2020An issue was discovered in OpenNMS Horizon before 26.0.1, and Meridian before 2018.1.19 and 2019 before 2019.1.7.CVE-2020-12760 · Other software · Opennms · reported by MITREHigh 8.8

    An issue was discovered in OpenNMS Horizon before 26.0.1, and Meridian before 2018.1.19 and 2019 before 2019.1.7. The ActiveMQ channel configuration allowed for arbitrary deserialization of Java objects (aka ActiveMQ Minion payload deserialization), leading to remote code execution for any authenticated channel user regardless of its assigned permissions.

    Product
    Opennms Horizon
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Apr 17, 2020OpenNMS Horizon and Meridian allows HQL Injection in element/nodeList.htm (aka the NodeListController) via snmpParm or snmpParmValue to addCriteriaForSnmpParm.CVE-2020-11886 · Other software · Opennms · reported by MITREHigh 8.1

    OpenNMS Horizon and Meridian allows HQL Injection in element/nodeList.htm (aka the NodeListController) via snmpParm or snmpParmValue to addCriteriaForSnmpParm. This affects Horizon before 25.2.1, Meridian 2019 before 2019.1.4, Meridian 2018 before 2018.1.16, and Meridian 2017 before 2017.1.21.

    Product
    Horizon
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Oct 10, 2018A reflected cross-site scripting vulnerability in OpenNMS included with Juniper Networks Junos Space may allow the stealing of sensitive information or session CVE-2018-0046 · Network & remote access · Juniper Networks · reported by sirt@juniper.netHigh 8.8

    A reflected cross-site scripting vulnerability in OpenNMS included with Juniper Networks Junos Space may allow the stealing of sensitive information or session credentials from Junos Space administrators or perform administrative actions. This issue affects Juniper Networks Junos Space versions prior to 18.2R1.

    Product
    Junos Space
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Oct 16, 2015OpenNMS has a default password of rtc for the rtc account, which makes it easier for remote attackers to obtain access by leveraging knowledge of the credentialCVE-2015-7856 · Other software · Opennms · reported by MITREHigh 10

    OpenNMS has a default password of rtc for the rtc account, which makes it easier for remote attackers to obtain access by leveraging knowledge of the credentials.

    Product
    Opennms
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 4, 2014Multiple cross-site scripting (XSS) vulnerabilities in OpenNMS before 1.12.7 allow remote attackers to inject arbitrary web script or HTML via unspecified vectoCVE-2014-3960 · Other software · Opennms · reported by MITREMedium 4.3

    Multiple cross-site scripting (XSS) vulnerabilities in OpenNMS before 1.12.7 allow remote attackers to inject arbitrary web script or HTML via unspecified vectors.

    Product
    Opennms
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jan 28, 2012Cross-site scripting (XSS) vulnerability in web/springframework/security/SecurityAuthenticationEventOnmsEventBuilder.java in OpenNMS 1.8.x before 1.8.17, 1.9.93CVE-2012-0936 · Other software · Opennms.org · reported by MITREMedium 4.3

    Cross-site scripting (XSS) vulnerability in web/springframework/security/SecurityAuthenticationEventOnmsEventBuilder.java in OpenNMS 1.8.x before 1.8.17, 1.9.93 and earlier, and 1.10.x before 1.10.1 allows remote attackers to inject arbitrary web script or HTML via the Username field, related to login.

    Product
    Opennms
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Feb 9, 2009Cross-site scripting (XSS) vulnerability in surveillanceView.htm in OpenNMS 1.5.94 allows remote attackers to inject arbitrary web script or HTML via the viewNaCVE-2008-6095 · Other software · Opennms · reported by MITREMedium 4.3

    Cross-site scripting (XSS) vulnerability in surveillanceView.htm in OpenNMS 1.5.94 allows remote attackers to inject arbitrary web script or HTML via the viewName parameter.

    Product
    Opennms
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Sep 29, 2008Multiple cross-site scripting (XSS) vulnerabilities in OpenNMS before 1.5.94 allow remote attackers to inject arbitrary web script or HTML via (1) the j_usernamCVE-2008-4320 · Other software · Opennms.org · reported by MITREMedium 4.3

    Multiple cross-site scripting (XSS) vulnerabilities in OpenNMS before 1.5.94 allow remote attackers to inject arbitrary web script or HTML via (1) the j_username parameter to j_acegi_security_check, (2) the username parameter to notification/list.jsp, and (3) the filter parameter to event/list.

    Product
    Opennms
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.

Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.

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