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.
24 results
Sep 15, 2026OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables.CVE-2026-76821 · Other software · OpenCTI-Platform · reported by GitHubHigh 7.1
OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to 7.260706.0, the JSON ingestion mapper's extractWithRegexp formula function compiled a user-supplied regular expression with the JavaScript RegExp engine in opencti-platform/opencti-graphql/src/parser/json-mapper.ts without validating its complexity. An authenticated user with JSON mapper creation permission could provide a catastrophically backtracking pattern and matching ingestion input, blocking the Node.js event loop and making the GraphQL API unavailable to all users. Scheduled ingestion could repeatedly execute the malicious mapper without additional attacker action, and recovery could require disabling the mapper and restarting the process. The issue affects availability and does not expose or modify data. This issue is fixed in version 7.260706.0.
- Product
- opencti
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 15, 2026OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables.CVE-2026-76820 · Other software · OpenCTI-Platform · reported by GitHubHigh 7.7
OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to 7.260701.0, the synchronizerFetch GraphQL query called fetchRemoteStreams after checking only that a remote stream URL used HTTP or HTTPS. The backend did not apply the ingestion deny list or reject private, loopback, and link-local destinations, allowing an authenticated account with the INGESTION capability to make OpenCTI request internal services and cloud metadata endpoints. Returned connection errors could distinguish open HTTP ports, open non-HTTP ports, and closed ports, enabling internal network scanning, while compatible endpoint responses could disclose internal data. This issue is fixed in version 7.260701.0.
- Product
- opencti
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 8, 2026OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables.CVE-2026-35211 · Other software · OpenCTI-Platform · reported by GitHubMedium 6.5
OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to 7.260401.0, the OpenCTI GraphQL API exposes a script filter operator in its FilterOperator enum that allows any authenticated user with the KNOWLEDGE capability to pass user-supplied Elasticsearch Painless script values directly into search queries without validation or sanitization, allowing computationally expensive scripts to consume cluster CPU resources and degrade or deny service for all users. This issue is fixed in version 7.260401.0.
- Product
- opencti
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 8, 2026OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables.CVE-2026-35210 · Other software · OpenCTI-Platform · reported by GitHubHigh 7.1
OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to 7.260326.0, an authorization bypass vulnerability in OpenCTI allows any authenticated user with KNOWLEDGE_KNUPDATE permission to bypass Confidence Level validation and Object Marking restrictions by injecting the synchronized-upsert: true HTTP header, enabling attackers to downgrade confidence levels, remove security markings such as TLP:RED, manipulate relationships, and affect STIX object types including Indicators, ThreatActors, Malware, and Reports. This issue is fixed in version 7.260326.0.
- Product
- opencti
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 2, 2026OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables.CVE-2026-35212 · Other software · OpenCTI-Platform · reported by GitHubMedium 5.3
OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Versions prior to 7.260227.0 are vulnerable to XSS in the rendering of email-message observable body data. The content of the body field isn't appropriately sanitized when being rendered. Does require user interaction but could be exploited by someone sharing stix or any of the ingester. This could lead to CSRF and then large scale session theft. Version 7.260227.0 contains a fix.
- Product
- opencti
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
May 26, 2026OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables.CVE-2026-44730 · Other software · OpenCTI-Platform · reported by GitHubHigh 7.2
OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to 6.9.7, an organization admin can escalate their privileges by adding a user from a different organization with higher privileges, to their own organization. This is due to incorrect ACL on userEdit relationAdd. This vulnerability is fixed in 6.9.7.
- Product
- opencti
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
May 5, 2026OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables.CVE-2026-27960 · Other software · OpenCTI-Platform · reported by GitHubCritical 9.8
OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. In versions 6.6.0 through 6.9.12, there is a privilege escalation vulnerability that can be exploited by unauthenticated attackers to query the API as any existing user, including the default admin account. This issue has been fixed in version 6.9.13. As a workaround, the default admin can be disabled using the `APP__ADMIN__EXTERNALLY_MANAGED` configuration.
- Product
- opencti
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 9, 2026OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables.CVE-2026-39980 · Other software · OpenCTI-Platform · reported by GitHubCritical 9.1
OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to 6.9.5, the safeEjs.ts file does not properly sanitize EJS templates. Users with the Manage customization capability can run arbitrary JavaScript in the context of the OpenCTI platform process during notifier template execution. This vulnerability is fixed in 6.9.5.
- Product
- opencti
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Mar 17, 2026OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables.CVE-2026-21886 · Other software · OpenCTI-Platform · reported by GitHubMedium 6.5
OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to version 6.9.1, the GraphQL mutations "IndividualDeletionDeleteMutation" is intended to allow users to delete individual entity objects respectively. However, it was observed that this mutation can be misused to delete unrelated and sensitive objects such as analyses reports etc. This behavior stems from the lack of validation in the API to ensure that the targeted object is contextually related to the mutation being executed. Version 6.9.1 fixes the issue.
- Product
- opencti
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Mar 12, 2026OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables.CVE-2026-21887 · Other software · OpenCTI-Platform · reported by GitHubHigh 7.7
OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to 6.8.16, the OpenCTI platform’s data ingestion feature accepts user-supplied URLs without validation and uses the Axios HTTP client with its default configuration (allowAbsoluteUrls: true). This allows attackers to craft requests to arbitrary endpoints, including internal services, because Axios will accept and process absolute URLs. This results in a semi-blind SSRF, as responses may not be fully visible but can still impact internal systems. This vulnerability is fixed in 6.8.16.
- Product
- opencti
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 30, 2026OpenCTI 3.3.1 is vulnerable to a reflected cross-site scripting (XSS) attack via the /graphql endpoint.CVE-2020-37044 · Other software · Filigran · reported by VulnCheckMedium 5.1
OpenCTI 3.3.1 is vulnerable to a reflected cross-site scripting (XSS) attack via the /graphql endpoint. An attacker can inject arbitrary JavaScript code by sending a crafted GET request with a malicious payload in the query string, leading to execution of JavaScript in the victim's browser. For example, a request to /graphql?'"--></style></scRipt><scRipt>alert('Raif_Berkay')</scRipt> will trigger an alert. This vulnerability was discovered by Raif Berkay Dincel and confirmed on Linux Mint and Windows 10.
- Product
- OpenCTI
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.comexploit-db.com
Jan 30, 2026OpenCTI 3.3.1 is vulnerable to a directory traversal attack via the static/css endpoint.CVE-2020-37041 · Other software · Filigran · reported by VulnCheckHigh 7.1
OpenCTI 3.3.1 is vulnerable to a directory traversal attack via the static/css endpoint. An unauthenticated attacker can read arbitrary files from the filesystem by sending crafted GET requests with path traversal sequences (e.g., '../') in the URL. For example, requesting /static/css//../../../../../../../../etc/passwd returns the contents of /etc/passwd. This vulnerability was discovered by Raif Berkay Dincel and confirmed on Linux Mint and Windows 10.
- Product
- OpenCTI
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.comexploit-db.com
Jan 7, 2026OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables.CVE-2025-61782 · Other software · OpenCTI-Platform · reported by GitHubMedium 5.4
OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to version 6.8.3, an open redirect vulnerability exists in the OpenCTI platform's SAML authentication endpoint (/auth/saml/callback). By manipulating the RelayState parameter, an attacker can force the server to issue a 302 redirect to any external URL, enabling phishing, credential theft, and arbitrary site redirection. This issue has been patched in version 6.8.3.
- Product
- opencti
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 5, 2026OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables.CVE-2025-61781 · Other software · OpenCTI-Platform · reported by GitHubHigh 7.1
OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to version 6.8.1, the GraphQL mutation "WorkspacePopoverDeletionMutation" allows users to delete workspace-related objects such as dashboards and investigation cases. However, the mutation lacks proper authorization checks to verify ownership of the targeted resources. An attacker can exploit this by supplying an active UUID of another user. Since the API does not validate whether the requester owns the resource, the mutation executes successfully, resulting in unauthorized deletion of the entire workspace. Version 6.8.1 fixes the issue.
- Product
- opencti
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 18, 2025OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables.CVE-2025-46732 · Other software · OpenCTI-Platform · reported by GitHubMedium 5.4
OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to version 6.6.6, an IDOR vulnerability in the GrapQL `NotificationLineNotificationMarkReadMutation` and `NotificationLineNotificationDeleteMutation` mutations of OpenCTI allows an authenticated user to change the read status of a notification or delete a notification of another user in case he has knowledge of the UUID of the notification. When changing the read status of a notification, the user also receives the content of the notification they changed the read status of. Authenticated Users in OpenCTI can read, modify and delete notification of other users if they know the UUID of the notification. Version 6.6.6 fixes the issue.
- Product
- opencti
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
May 19, 2025OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables.CVE-2025-26621 · Other software · OpenCTI-Platform · reported by GitHubHigh 7.6
OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to version 6.5.2, any user with the capability manage customizations can edit webhook that will execute javascript code. This can be abused to cause a denial of service attack by prototype pollution, making the node js server running the OpenCTI frontend become unavailable. Version 6.5.2 fixes the issue.
- Product
- opencti
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
May 5, 2025OpenCTI is an open cyber threat intelligence (CTI) platform.CVE-2025-24977 · Other software · OpenCTI-Platform · reported by GitHubCritical 9.1
OpenCTI is an open cyber threat intelligence (CTI) platform. Prior to version 6.4.11 any user with the capability `manage customizations` can execute commands on the underlying infrastructure where OpenCTI is hosted and can access internal server side secrets by misusing the web-hooks. Since the malicious user gets a root shell inside a container this opens up the the infrastructure environment for further attacks and exposures. Version 6.4.11 fixes the issue.
- Product
- opencti
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 30, 2025OpenCTI is an open-source cyber threat intelligence platform.CVE-2025-24887 · Other software · OpenCTI-Platform · reported by GitHubMedium 6.3
OpenCTI is an open-source cyber threat intelligence platform. In versions starting from 6.4.8 to before 6.4.10, the allow/deny lists can be bypassed, allowing a user to change attributes that are intended to be unmodifiable by the user. It is possible to toggle the `external` flag on/off and change the own token value for a user. It is also possible to edit attributes that are not in the allow list, such as `otp_qr` and `otp_activated`. If external users exist in the OpenCTI setup and the information about these users identities is sensitive, the above vulnerabilities can be used to enumerate existing user accounts as a standard low privileged user. This issue has been patched in version 6.4.10.
- Product
- opencti
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Dec 26, 2024OpenCTI is an open-source cyber threat intelligence platform.CVE-2024-45805 · Other software · OpenCTI-Platform · reported by GitHubMedium 4.3
OpenCTI is an open-source cyber threat intelligence platform. Before 6.3.0, general users can access information that can only be accessed by users with access privileges to admin and support information (SETTINGS_SUPPORT). This is due to inadequate access control for support information (http://<opencti_domain>/storage/get/support/UUID/UUID.zip), and that the UUID is available to general users using an attached query (logs query). This vulnerability is fixed in 6.3.0.
- Product
- opencti
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Dec 11, 2024OpenCTI is an open-source cyber threat intelligence platform.CVE-2024-45404 · Other software · OpenCTI-Platform · reported by GitHubHigh 8.1
OpenCTI is an open-source cyber threat intelligence platform. In versions below 6.2.18, because the function to limit the rate of OTP does not exist, an attacker with valid credentials or a malicious user who commits internal fraud can break through the two-factor authentication and hijack the account. This is because the otpLogin mutation does not implement One Time Password rate limiting. As of time of publication, it is unknown whether a patch is available.
- Product
- opencti
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Nov 18, 2024OpenCTI is an open source platform allowing organizations to manage their cyber threat intelligence knowledge and observables.CVE-2024-37155 · Other software · OpenCTI-Platform · reported by GitHubMedium 6.5
OpenCTI is an open source platform allowing organizations to manage their cyber threat intelligence knowledge and observables. Prior to version 6.1.9, the regex validation used to prevent Introspection queries can be bypassed by removing the extra whitespace, carriage return, and line feed characters from the query. GraphQL Queries in OpenCTI can be validated using the `secureIntrospectionPlugin`. The regex check in the plkugin can be bypassed by removing the carriage return and line feed characters (`\r\n`). Running a curl command against a local instance of OpenCTI will result in a limited error message. By running the same Introspection query without the `\r\n` characters, the unauthenticated user is able to successfully run a full Introspection query. Bypassing this restriction allows the attacker to gather a wealth of information about the GraphQL endpoint functionality that can be used to perform actions and/or read data without authorization. These queries can also be weaponized to conduct a Denial of Service (DoS) attack if sent repeatedly. Users should upgrade to version 6.1.9 to receive a patch for the issue.
- Product
- opencti
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
May 23, 2024OpenCTI is an open source platform allowing organizations to manage their cyber threat intelligence knowledge and observables.CVE-2024-26139 · Other software · OpenCTI-Platform · reported by GitHubHigh 8.3
OpenCTI is an open source platform allowing organizations to manage their cyber threat intelligence knowledge and observables. Due to lack of certain security controls on the profile edit functionality, an authenticated attacker with low privileges can gain administrative privileges on the web application.
- Product
- opencti
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 5, 2022In OpenCTI through 5.2.4, a broken access control vulnerability has been identified in the profile endpoint.CVE-2022-30290 · Other software · Citeum · reported by MITREHigh 7.5
In OpenCTI through 5.2.4, a broken access control vulnerability has been identified in the profile endpoint. An attacker can abuse the identified vulnerability in order to arbitrarily change their registered e-mail address as well as their API key, even though such action is not possible through the interface, legitimately.
- Product
- Opencti
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.comenisa.europa.eu
Jul 5, 2022A stored Cross-site Scripting (XSS) vulnerability was identified in the Data Import functionality of OpenCTI through 5.2.4.CVE-2022-30289 · Other software · Citeum · reported by MITREMedium 5.4
A stored Cross-site Scripting (XSS) vulnerability was identified in the Data Import functionality of OpenCTI through 5.2.4. An attacker can abuse the vulnerability to upload a malicious file that will then be executed by a victim when they open the file location.
- Product
- Opencti
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.comenisa.europa.eu
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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