Critical security advisoryCriticalFlagged by our vulnerability database: PHP2Shell is on CISA’s exploited list. Most WordPress hosting runs PHP. See if your site is affectedFlagged by our vulnerability database: PHP2Shell is being exploited. DetailsExploited: PHP2Shell. Check your site
HuttenlocherTechnologies
Updated 10 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.

1,764exploited flaws on CISA’s list
35added in the last 30 days
457new WordPress flaws this week
390,525entries in the database

23 results

  • Oct 13, 2026Vitess is a database clustering system for horizontal scaling of MySQL.CVE-2026-104252 · Other software · vitessio · reported by GitHubCritical 9.8

    Vitess is a database clustering system for horizontal scaling of MySQL. Prior to 23.0.5 and 24.0.2, twopczHandler in go/vt/vttablet/tabletserver/twopcz.go writes the Action and dtid form values from the vttablet and vtcombo /twopcz HTTP debug endpoint into a text/html response without HTML escaping. Under the default allow-all ACL policy, a remote unauthenticated attacker can send an operator a crafted request that executes script in the operator's browser after the request is opened. The script runs with the vttablet debug origin and can read same-origin diagnostic endpoints that expose query, transaction, environment, variable, or profiling data available in that deployment. This issue is fixed in versions 23.0.5 and 24.0.2.

    Product
    vitess
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Oct 12, 2026A SQL Injection (SQLi) affects the Kong Gateway (Enterprise and Open Source) clustering communication logic when operating in Hybrid Mode.CVE-2026-1907 · Other software · Kong · reported by 02762ae7-200e-4b20-9b2b-a77d5b8fc4cbHigh 7.5

    A SQL Injection (SQLi) affects the Kong Gateway (Enterprise and Open Source) clustering communication logic when operating in Hybrid Mode. The issue can be triggered by sending specially crafted RPC requests to the Control Plane (CP), leading to potential unauthorized database access. Leveraging the issue requires network access to the Control Plane’s clustering port and a valid client certificate and key.

    Product
    Kong Enterprise Gateway
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 24, 2026The official Flair wheels for 0.15.0 and 0.15.1 still contain flair/models/clustering.py, whose ClusteringModel.load static method returns pickle.loads(joblib.lCVE-2026-76843 · Other software · flairNLP · reported by VulnCheckHigh 8.4

    The official Flair wheels for 0.15.0 and 0.15.1 still contain flair/models/clustering.py, whose ClusteringModel.load static method returns pickle.loads(joblib.load(str(model_file))) and so executes arbitrary Python while loading a model file. Loading a model supplied by an attacker therefore runs that attacker's code with the privileges of the loading process. This is the same sink and the same file as CVE-2024-10073, which records 0.15.0 as the fixed version on the basis that clustering support was dropped in that release; the module was removed from the documented API but remains present in the distributed artifact and reachable by importing flair.models.clustering directly, so the earlier record's fixed version does not hold for the shipped package.

    Product
    flair
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 19, 2026In Splunk Enterprise versions below 10.4.2, a user with a high-privilege Splunk role that can manage search head clustering could use the search head cluster meCVE-2026-76345 · Other software · Splunk · reported by psirt@cisco.comMedium 6

    In Splunk Enterprise versions below 10.4.2, a user with a high-privilege Splunk role that can manage search head clustering could use the search head cluster member bundle Representational State Transfer (REST) API to write files to locations that the user account running Splunk Enterprise can write to, which could allow for remote code execution. Successful exploitation could result in access to all relevant data and could affect the integrity and availability of the Splunk deployment. The vulnerability does not affect Splunk Enterprise versions below 10.4. The vulnerability is possible because the search head cluster member bundle REST API does not enforce the expected authorization boundary and does not validate bundle paths before accepting bundle content. For more information see Using the REST API reference (https://help.splunk.com/en/splunk-enterprise/rest-api-reference/10.2/introduction/using-the-rest-api-reference), About configuring role-based user access (https://help.splunk.com/en/splunk-enterprise/administer/manage-users-and-security/10.2/manage-splunk-platform-users-and-roles/about-configuring-role-based-user-access), and About distributed search (https://help.splunk.

    Product
    Splunk Enterprise
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 18, 2026Vitess is a database clustering system for horizontal scaling of MySQL.CVE-2026-65959 · Other software · vitessio · reported by GitHubMedium 5.3

    Vitess is a database clustering system for horizontal scaling of MySQL. In 24.0.2 and earlier, the /debug/vrlog endpoint registered by addHttpEndpoint() in go/vt/vttablet/tabletmanager/vreplication/vrlog.go invokes vrlogStatsHandler() without acl.CheckAccessHTTP(r, acl.DEBUGGING), unlike comparable debug endpoints. A remote caller who can reach the vttablet debug HTTP port can bypass the configured security policy and stream VrLogStats data produced from NewVrLogStats().Send(), including literal SQL statements and bound application values from MoveTables, Reshard, Materialize, and vitess-strategy Online DDL workflows

    Product
    vitess
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jul 28, 2026Deserialization of Untrusted Data (CWE-502) in the Tribes-based clustering component  in Apache Software Foundation Apache Axis2/Java through 2.0.0 on Apache CVE-2026-66713 · Websites & servers · Apache Software Foundation · reported by security@apache.orgCritical 9.8

    Deserialization of Untrusted Data (CWE-502) in the Tribes-based clustering component  in Apache Software Foundation Apache Axis2/Java through 2.0.0 on Apache Tomcat  (only when Tribes clustering is enabled, which is off by default) allows an  unauthenticated remote attacker with network access to the clustering port to  execute arbitrary code via a crafted serialized Java object delivered to the cluster  channel and deserialized in  org.apache.axis2.clustering.tribes.Axis2ChannelListener#messageReceived. Users are  recommended to upgrade to version 2.0.1, which fixes this issue by removing the  clustering feature entirely.

    Product
    Apache Axis2/Java
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Apr 9, 2026Insertion of Sensitive Information into Log File vulnerability in the cloud membership for clustering component of Apache Tomcat exposed the Kubernetes bearer tCVE-2026-34487 · Websites & servers · Apache Software Foundation · reported by security@apache.orgHigh 7.5

    Insertion of Sensitive Information into Log File vulnerability in the cloud membership for clustering component of Apache Tomcat exposed the Kubernetes bearer token. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.20, from 10.1.0-M1 through 10.1.53, from 9.0.13 through 9.0.116. Users are recommended to upgrade to version 11.0.21, 10.1.54 or 9.0.117, which fix the issue.

    Product
    Apache Tomcat
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Feb 25, 2026Vitess is a database clustering system for horizontal scaling of MySQL.CVE-2026-27969 · Other software · vitessio · reported by GitHubCritical 9.3

    Vitess is a database clustering system for horizontal scaling of MySQL. Prior to versions 23.0.3 and 22.0.4, anyone with read/write access to the backup storage location (e.g. an S3 bucket) can manipulate backup manifest files so that files in the manifest — which may be files that they have also added to the manifest and backup contents — are written to any accessible location on restore. This is a common path traversal security issue. This can be used to provide that attacker with unintended/unauthorized access to the production deployment environment — allowing them to access information available in that environment as well as run any additional arbitrary commands there. Versions 23.0.3 and 22.0.4 contain a patch. No known workarounds are available.

    Product
    vitess
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Feb 25, 2026Vitess is a database clustering system for horizontal scaling of MySQL.CVE-2026-27965 · Other software · vitessio · reported by GitHubHigh 8.4

    Vitess is a database clustering system for horizontal scaling of MySQL. Prior to versions 23.0.3 and 22.0.4, anyone with read/write access to the backup storage location (e.g. an S3 bucket) can manipulate backup manifest files so that arbitrary code is later executed when that backup is restored. This can be used to provide that attacker with unintended/unauthorized access to the production deployment environment — allowing them to access information available in that environment as well as run any additional arbitrary commands there. Versions 23.0.3 and 22.0.4 contain a patch. Some workarounds are available. Those who intended to use an external decompressor then can always specify that decompressor command in the `--external-decompressor` flag value for `vttablet` and `vtbackup`. That then overrides any value specified in the manifest file. Those who did not intend to use an external decompressor, nor an internal one, can specify a value such as `cat` or `tee` in the `--external-decompressor` flag value for `vttablet` and `vtbackup` to ensure that a harmless command is always used.

    Product
    vitess
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jan 8, 2025Vendor: The Apache Software Foundation Versions Affected: Apache OpenMeetings from 2.1.0 before 8.0.0 Description: Default clustering instructions at https:/CVE-2024-54676 · Websites & servers · Apache Software Foundation · reported by security@apache.orgCritical 9.8

    Vendor: The Apache Software Foundation Versions Affected: Apache OpenMeetings from 2.1.0 before 8.0.0 Description: Default clustering instructions at https://openmeetings.apache.org/Clustering.html  doesn't specify white/black lists for OpenJPA this leads to possible deserialisation of untrusted data. Users are recommended to upgrade to version 8.0.0 and update their startup scripts to include the relevant 'openjpa.serialization.class.blacklist' and 'openjpa.serialization.class.whitelist' configurations as shown in the documentation.

    Product
    Apache OpenMeetings
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 3, 2024Vitess is a database clustering system for horizontal scaling of MySQL.CVE-2024-53257 · Other software · vitessio · reported by GitHubMedium 4.9

    Vitess is a database clustering system for horizontal scaling of MySQL. The /debug/querylogz and /debug/env pages for vtgate and vttablet do not properly escape user input. The result is that queries executed by Vitess can write HTML into the monitoring page at will. These pages are rendered using text/template instead of rendering with a proper HTML templating engine. This vulnerability is fixed in 21.0.1, 20.0.4, and 19.0.8.

    Product
    vitess
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 8, 2024Vitess is a database clustering system for horizontal scaling of MySQL.CVE-2024-32886 · Other software · vitessio · reported by GitHubMedium 4.9

    Vitess is a database clustering system for horizontal scaling of MySQL. When executing the following simple query, the `vtgate` will go into an endless loop that also keeps consuming memory and eventually will run out of memory. This vulnerability is fixed in 19.0.4, 18.0.5, and 17.0.7.

    Product
    vitess
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Mar 20, 2024IBM MQ 9.0 LTS, 9.1 LTS, 9.2 LTS, 9.3 LTS and 9.3 CD is vulnerable to a denial-of-service attack due to an error within the MQ clustering logic.CVE-2023-45177 · Other software · IBM · reported by psirt@us.ibm.comMedium 5.3

    IBM MQ 9.0 LTS, 9.1 LTS, 9.2 LTS, 9.3 LTS and 9.3 CD is vulnerable to a denial-of-service attack due to an error within the MQ clustering logic. IBM X-Force ID: 268066.

    Product
    MQ
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 11, 2023Vitess is a database clustering system for horizontal scaling of MySQL through generalized sharding.CVE-2023-29195 · Other software · vitessio · reported by GitHubMedium 4.1

    Vitess is a database clustering system for horizontal scaling of MySQL through generalized sharding. Prior to version 16.0.2, users can either intentionally or inadvertently create a shard containing `/` characters from VTAdmin such that from that point on, anyone who tries to create a new shard from VTAdmin will receive an error. Attempting to view the keyspace(s) will also no longer work. Creating a shard using `vtctldclient` does not have the same problem because the CLI validates the input correctly. Version 16.0.2, corresponding to version 0.16.2 of the `go` module, contains a patch for this issue. Some workarounds are available. Always use `vtctldclient` to create shards, instead of using VTAdmin; disable creating shards from VTAdmin using RBAC; and/or delete the topology record for the offending shard using the client for your topology server.

    Product
    vitess
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Apr 14, 2023Vitess is a database clustering system for horizontal scaling of MySQL.CVE-2023-29194 · Other software · vitessio · reported by GitHubMedium 4.1

    Vitess is a database clustering system for horizontal scaling of MySQL. Users can either intentionally or inadvertently create a keyspace containing `/` characters such that from that point on, anyone who tries to view keyspaces from VTAdmin will receive an error. Trying to list all the keyspaces using `vtctldclient GetKeyspaces` will also return an error. Note that all other keyspaces can still be administered using the CLI (vtctldclient). This issue is fixed in version 16.0.1. As a workaround, delete the offending keyspace using a CLI client (vtctldclient).

    Product
    vitess
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Nov 12, 2021Clustering master branch as of commit 53e663e259bcfc8cdecb56c0bb255bd70bfcaa70 is affected by a directory traversal vulnerability.CVE-2021-43496 · Other software · Clustering Project · reported by MITREHigh 7.5

    Clustering master branch as of commit 53e663e259bcfc8cdecb56c0bb255bd70bfcaa70 is affected by a directory traversal vulnerability. This attack can cause the disclosure of critical secrets stored anywhere on the system and can significantly aid in getting remote code access.

    Product
    Clustering
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Mar 31, 2021On all 7.x and 6.x versions (fixed in 8.0.0), BIG-IQ HA ElasticSearch service does not implement any form of authentication for the clustering transport serviceCVE-2021-22997 · Network & remote access · F5 · reported by f5sirt@f5.comHigh 7.5

    On all 7.x and 6.x versions (fixed in 8.0.0), BIG-IQ HA ElasticSearch service does not implement any form of authentication for the clustering transport services, and all data used by ElasticSearch for transport is unencrypted. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.

    Product
    Big-iq Centralized Management
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 1, 2019cPanel before 55.9999.141 allows attackers to bypass Two Factor Authentication via DNS clustering requests (SEC-93).CVE-2016-10826 · Websites & servers · Cpanel · reported by MITREHigh 8.8

    cPanel before 55.9999.141 allows attackers to bypass Two Factor Authentication via DNS clustering requests (SEC-93).

    Product
    Cpanel
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 14, 2019IBM i 7.27.3 Clustering could allow a local attacker to obtain sensitive information, caused by the use of advanced node failure detection using the REST API toCVE-2019-4381 · Other software · IBM · reported by psirt@us.ibm.comMedium 5.5

    IBM i 7.27.3 Clustering could allow a local attacker to obtain sensitive information, caused by the use of advanced node failure detection using the REST API to interface with the HMC. An attacker could exploit this vulnerability to obtain HMC credentials. IBM X-Force ID: 162159.

    Product
    i
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Feb 24, 2017IBM WebSphere MQ 8.0 could allow an authenticated user with authority to create a cluster object to cause a denial of service to MQ clustering.CVE-2016-9009 · Other software · IBM Corporation · reported by psirt@us.ibm.comLow 3.1

    IBM WebSphere MQ 8.0 could allow an authenticated user with authority to create a cluster object to cause a denial of service to MQ clustering. IBM Reference #: 1998647.

    Product
    WebSphere MQ
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jul 10, 2015Cisco AsyncOS on Email Security Appliance (ESA) devices with software 8.5.6-073, 8.5.6-074, and 9.0.0-461, when clustering is enabled, allows remote attackers tCVE-2015-4236 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 4.3

    Cisco AsyncOS on Email Security Appliance (ESA) devices with software 8.5.6-073, 8.5.6-074, and 9.0.0-461, when clustering is enabled, allows remote attackers to cause a denial of service (clustering and SSH outage) via a packet flood, aka Bug IDs CSCur13704 and CSCuq05636.

    Product
    Email Security Appliance
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 28, 2006Multiple buffer overflows in the (a) Session Clustering Daemon and the (b) mod_cluster module in the Zend Platform 2.2.1 and earlier allow remote attackers to cCVE-2006-4431 · Other software · Zend · reported by MITREHigh 7.5

    Multiple buffer overflows in the (a) Session Clustering Daemon and the (b) mod_cluster module in the Zend Platform 2.2.1 and earlier allow remote attackers to cause a denial of service (crash) or execute arbitrary code via a (1) empty or (2) crafted PHP session identifier (PHPSESSID).

    Product
    Zend Platform
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 31, 2003Cross-site scripting (XSS) vulnerability in Vivisimo clustering engine allows remote attackers to inject arbitrary web script or HTML via the query parameter toCVE-2003-1519 · Other software · Vivisimo · reported by MITREMedium 4.3

    Cross-site scripting (XSS) vulnerability in Vivisimo clustering engine allows remote attackers to inject arbitrary web script or HTML via the query parameter to the search program.

    Product
    Clustering Engine
    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.

Weekly security brief

The flaws that hit local websites, every Friday.

One short email: what got exploited this week, which WordPress plugins broke, and what to check. Unsubscribe in one click.

Get in touch

Tell us what you're building.

A website, your marketing, a security check, an app, or the thing you've been running out of a spreadsheet for three years. A few lines is plenty.

01The person who'll do the work writes back
02A short call, then a written plan with the price
03Nothing starts until you say yes
04Hacked or down right now? Call, and we pick up the same day
843-331-6339

Not ready to talk yet? Run the free website check and see what Google sees.

What do you need?
Build
Grow
Protect
Urgent

No newsletter, no sales sequence. Just a reply.