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.
714 results · page 1 of 15
Oct 15, 2026On request the `sdbootutil` script creates a world-readable debug log in /var/log/sdbootutil.log.CVE-2026-104618 · Other software · SUSE · reported by meissner@suse.deMedium 6.9
On request the `sdbootutil` script creates a world-readable debug log in /var/log/sdbootutil.log. The log file is created world-readable, however, which means that arbitrary low-privileged users in the system will be able to extract secrets from it.
- Product
- SUSE Linux Enterprise Server 16.1
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordbugzilla.suse.comsuse.com
Oct 15, 2026There are two invocations of `qrencode` to display a QR code for scanning.CVE-2026-104617 · Other software · SUSE · reported by meissner@suse.deMedium 5.9
There are two invocations of `qrencode` to display a QR code for scanning. These invocations leak the private data $pin / $key via /proc accessible for arbitrary low-privileged users in the system.
- Product
- SUSE Linux Enterprise Server 16.1
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordbugzilla.suse.comsuse.com
Oct 13, 2026Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an unauthorized attacker to perform sCVE-2026-97783 · Email & office · Microsoft · reported by secure@microsoft.comHigh 8.1
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.
- Product
- Microsoft SharePoint Enterprise Server 2016
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 6, 2026A Server-Side Request Forgery (SSRF) vulnerability was identified in GitHub Enterprise Server that allowed a repository contributor to cause the appliance to isCVE-2026-96890 · Other software · GitHub · reported by product-cna@github.comHigh 8.7
A Server-Side Request Forgery (SSRF) vulnerability was identified in GitHub Enterprise Server that allowed a repository contributor to cause the appliance to issue requests to attacker-controlled internal hosts, which could be chained to achieve remote code execution on the appliance. The secret scanning validator for GCP service account credentials trusted the token endpoint embedded in a committed credential and issued a request to it without restricting the destination. Exploitation required an authenticated user with permission to push to a repository on an instance with GitHub Advanced Security and secret scanning validity checks enabled, a non-default configuration. This vulnerability affected GitHub Enterprise Server 3.20, 3.21, and 3.22 and was fixed in versions 3.20.9, 3.21.7, and 3.22.2. This vulnerability was reported through the GitHub Bug Bounty program.
- Product
- Enterprise Server
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recorddocs.github.comdocs.github.com
Oct 6, 2026A missing authorization vulnerability was identified in GitHub Enterprise Server that allowed a repository collaborator with write access to delete the current CVE-2026-103620 · Other software · GitHub · reported by product-cna@github.comMedium 6
A missing authorization vulnerability was identified in GitHub Enterprise Server that allowed a repository collaborator with write access to delete the current default branch through the GraphQL API and cause an attacker-controlled branch to become the new default. In repositories that required pull-request review but did not restrict branch deletion, this bypassed the review requirement and caused fresh clones and default-branch API requests to use attacker-controlled content. This vulnerability affected supported GitHub Enterprise Server releases in the 3.18, 3.19, 3.20, 3.21, and 3.22 series and was fixed in versions 3.18.16, 3.19.13, 3.20.9, 3.21.7, and 3.22.2. This vulnerability was reported via the GitHub Bug Bounty program.
- Product
- Enterprise Server
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recorddocs.github.comdocs.github.com
Sep 22, 2026A server-side request forgery (SSRF) vulnerability was identified in the notebook viewer of GitHub Enterprise Server.CVE-2026-77987 · Other software · GitHub · reported by product-cna@github.comCritical 9.3
A server-side request forgery (SSRF) vulnerability was identified in the notebook viewer of GitHub Enterprise Server. The notebook viewer validated the scheme and host of a user-supplied URL but did not validate the port, allowing requests to be directed to internal services listening on other ports of the same appliance. Response bodies were not returned to the requester, but response timing acted as an oracle that allowed instance secrets to be extracted character by character. An extracted secret could then be used in a separate interaction with an internal service to obtain remote code execution on the appliance. Exploitation required network access to the instance and was unauthenticated when private mode was disabled, or required any authenticated user when private mode was enabled. This vulnerability affected GitHub Enterprise Server versions 3.17 through 3.22 and was fixed in versions 3.22.1, 3.21.6, 3.20.8, 3.19.12, 3.18.15, and 3.17.21. This vulnerability was reported through the GitHub Bug Bounty program.
- Product
- Enterprise Server
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recorddocs.github.comdocs.github.com
Sep 22, 2026A stored cross-site scripting (XSS) vulnerability was identified in GitHub Enterprise Server that allowed an authenticated attacker to inject arbitrary HTML attCVE-2026-77912 · Other software · GitHub · reported by product-cna@github.comHigh 7.4
A stored cross-site scripting (XSS) vulnerability was identified in GitHub Enterprise Server that allowed an authenticated attacker to inject arbitrary HTML attributes into rendered Markdown because the Markdown rendering pipeline rewrote quote characters in already-sanitized HTML without re-sanitizing the result. Crafted Markdown could abuse same-origin JavaScript gadgets to bypass Content Security Policy and gain control of the page DOM when viewed by another user. Successful exploitation could allow an attacker to read content visible to the victim, extract embedded CSRF tokens, perform state-changing actions as the victim, and exfiltrate data through same-origin writes. The payload could also propagate to repositories and organizations where the victim had write access. This vulnerability affected supported GitHub Enterprise Server releases in the 3.17, 3.18, 3.19, 3.20, 3.21, and 3.22 series and was fixed in versions 3.22.1, 3.21.6, 3.20.8, 3.19.12, 3.18.15, and 3.17.21. This vulnerability was reported via the GitHub Bug Bounty program.
- Product
- Enterprise Server
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recorddocs.github.comdocs.github.com
Sep 22, 2026An authorization bypass vulnerability was identified in GitHub Enterprise Server that allowed any authenticated user of the instance to read the raw diff or patCVE-2026-75101 · Other software · GitHub · reported by product-cna@github.comMedium 6
An authorization bypass vulnerability was identified in GitHub Enterprise Server that allowed any authenticated user of the instance to read the raw diff or patch of pull requests in private repositories without authorization. Access tokens for raw pull request diffs and patches were scoped to the repository name and pull request number rather than to a globally unique repository identifier, so an attacker who created a repository and pull request matching a target's repository name and pull request number could use a token for their own repository to retrieve the private pull request's contents. Exploitation required the attacker to know the target repository's name and a valid pull request number. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.22 and was fixed in versions 3.17.21, 3.18.15, 3.19.12, 3.20.8, and 3.21.6. This vulnerability was reported via the GitHub Bug Bounty program.
- Product
- Enterprise Server
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recorddocs.github.comdocs.github.com
Sep 16, 2026A server-side request forgery (SSRF) vulnerability exists in the UnifiedLogin service of Altium Enterprise Server.CVE-2026-92808 · Other software · Altium · reported by 4760f414-e1ae-4ff1-bdad-c7a9c3538b79Critical 10
A server-side request forgery (SSRF) vulnerability exists in the UnifiedLogin service of Altium Enterprise Server. An unauthenticated network attacker can cause the server to issue outbound HTTP requests to a destination of the attacker's choosing, including internal services that are reachable only from the server itself. One such internal service exposes server configuration and credential material without authentication, relying only on the request originating locally. Because the forged requests originate from the server process, that check is satisfied. An unauthenticated attacker can therefore retrieve stored credentials and use them to obtain an administrative session, resulting in full compromise of the server and all of its services. Altium 365 cloud deployments are not affected, as the affected endpoint is disabled in cloud mode.
- Product
- Altium Enterprise Server
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 1, 2026A Server-Side Request Forgery (SSRF) vulnerability was identified in GitHub Enterprise Server that allowed remote code execution on the instance.CVE-2026-76851 · Other software · GitHub · reported by product-cna@github.comHigh 7.7
A Server-Side Request Forgery (SSRF) vulnerability was identified in GitHub Enterprise Server that allowed remote code execution on the instance. Insufficient network isolation allowed malicious pre-receive hook code to impersonate an internal service and redirect trusted internal requests to a privileged service, leading to elevated code execution. Exploitation required pre-receive hook networking to be enabled and either site administrator privileges or write access to a repository containing a configured pre-receive hook. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.22 and was fixed in versions 3.17.20, 3.18.14, 3.19.11, 3.20.7, and 3.21.5. This vulnerability was reported via the GitHub Bug Bounty program.
- Product
- Enterprise Server
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recorddocs.github.comdocs.github.com
Sep 1, 2026A time-of-check time-of-use race condition vulnerability was identified in GitHub Enterprise Server that allowed remote code execution.CVE-2026-19118 · Other software · GitHub · reported by product-cna@github.comHigh 7.7
A time-of-check time-of-use race condition vulnerability was identified in GitHub Enterprise Server that allowed remote code execution. Exploitation required an authenticated user with write access to a repository and precise timing of concurrent upload requests. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.22 and was fixed in versions 3.17.20, 3.18.14, 3.19.11, 3.20.7, and 3.21.5. This vulnerability was reported via the GitHub Bug Bounty program.
- Product
- Enterprise Server
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recorddocs.github.comdocs.github.com
Sep 1, 2026A server-side request forgery (SSRF) vulnerability was identified in GitHub Enterprise Server that allowed an unauthenticated attacker to cause the Manage API tCVE-2026-18730 · Other software · GitHub · reported by product-cna@github.comHigh 8.2
A server-side request forgery (SSRF) vulnerability was identified in GitHub Enterprise Server that allowed an unauthenticated attacker to cause the Manage API to send crafted outbound requests to an attacker-controlled host. An unauthenticated endpoint parsed an attacker-supplied cluster configuration and issued gateway-to-agent requests whose HMAC authenticated only a timestamp, not the request path or body. An attacker positioned to intercept the outbound request could capture this token and replay it against privileged management agent endpoints. High-availability deployments were not affected due to a topology restriction. This vulnerability affected GitHub Enterprise Server releases in the 3.17, 3.18, 3.19, 3.20, and 3.21 series and was fixed in versions 3.17.21, 3.18.15, 3.19.12, 3.20.8, and 3.21.6. This vulnerability was reported via the GitHub Bug Bounty program.
- Product
- Enterprise Server
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recorddocs.github.comdocs.github.com
Aug 11, 2026Server-side request forgery (ssrf) in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.CVE-2026-70324 · Email & office · Microsoft · reported by secure@microsoft.comHigh 8.8
Server-side request forgery (ssrf) in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.
- Product
- Microsoft SharePoint Enterprise Server 2016
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 11, 2026Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an unauthorized attacker to perform sCVE-2026-70306 · Email & office · Microsoft · reported by secure@microsoft.comCritical 9.3
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.
- Product
- Microsoft SharePoint Enterprise Server 2016
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 11, 2026Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.CVE-2026-66808 · Email & office · Microsoft · reported by secure@microsoft.comHigh 8.8
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
- Product
- Microsoft SharePoint Enterprise Server 2016
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 11, 2026Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.CVE-2026-65663 · Email & office · Microsoft · reported by secure@microsoft.comHigh 8.8
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
- Product
- Microsoft SharePoint Enterprise Server 2016
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 11, 2026Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.CVE-2026-65658 · Email & office · Microsoft · reported by secure@microsoft.comHigh 8.8
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
- Product
- Microsoft SharePoint Enterprise Server 2016
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 11, 2026Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoCVE-2026-64922 · Email & office · Microsoft · reported by secure@microsoft.comMedium 4.6
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
- Product
- Microsoft SharePoint Enterprise Server 2016
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 11, 2026Missing authentication for critical function in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.CVE-2026-64921 · Email & office · Microsoft · reported by secure@microsoft.comHigh 8.8
Missing authentication for critical function in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.
- Product
- Microsoft SharePoint Enterprise Server 2016
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 11, 2026Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoCVE-2026-64916 · Email & office · Microsoft · reported by secure@microsoft.comMedium 4.6
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
- Product
- Microsoft SharePoint Enterprise Server 2016
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 11, 2026Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoCVE-2026-64902 · Email & office · Microsoft · reported by secure@microsoft.comMedium 4.6
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
- Product
- Microsoft SharePoint Enterprise Server 2016
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 11, 2026Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.CVE-2026-64901 · Email & office · Microsoft · reported by secure@microsoft.comHigh 8.8
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
- Product
- Microsoft SharePoint Enterprise Server 2016
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 11, 2026Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoCVE-2026-64900 · Email & office · Microsoft · reported by secure@microsoft.comHigh 7.3
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
- Product
- Microsoft SharePoint Enterprise Server 2016
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 11, 2026Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoCVE-2026-64897 · Email & office · Microsoft · reported by secure@microsoft.comMedium 4.6
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
- Product
- Microsoft SharePoint Enterprise Server 2016
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 11, 2026Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to execute code over a network.CVE-2026-63520 · Email & office · Microsoft · reported by secure@microsoft.comHigh 8.1
Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to execute code over a network.
- Product
- Microsoft SharePoint Enterprise Server 2016
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 11, 2026Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.CVE-2026-63516 · Email & office · Microsoft · reported by secure@microsoft.comMedium 6.5
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
- Product
- Microsoft SharePoint Enterprise Server 2016
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 11, 2026Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.CVE-2026-63514 · Email & office · Microsoft · reported by secure@microsoft.comHigh 8.8
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
- Product
- Microsoft SharePoint Enterprise Server 2016
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 11, 2026Incorrect authorization in Microsoft Office SharePoint allows an authorized attacker to perform tampering over a network.CVE-2026-63512 · Email & office · Microsoft · reported by secure@microsoft.comMedium 6.5
Incorrect authorization in Microsoft Office SharePoint allows an authorized attacker to perform tampering over a network.
- Product
- Microsoft SharePoint Enterprise Server 2016
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 11, 2026Improper input validation in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.CVE-2026-62917 · Email & office · Microsoft · reported by secure@microsoft.comMedium 4.6
Improper input validation in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
- Product
- Microsoft SharePoint Enterprise Server 2016
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 11, 2026Insufficiently protected credentials in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.CVE-2026-62839 · Email & office · Microsoft · reported by secure@microsoft.comMedium 6.5
Insufficiently protected credentials in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
- Product
- Microsoft SharePoint Enterprise Server 2016
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 11, 2026Relative path traversal in Microsoft Office SharePoint allows an authorized attacker to disclose information over a network.CVE-2026-62837 · Email & office · Microsoft · reported by secure@microsoft.comMedium 6.5
Relative path traversal in Microsoft Office SharePoint allows an authorized attacker to disclose information over a network.
- Product
- Microsoft SharePoint Enterprise Server 2016
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 11, 2026Improper authentication in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.CVE-2026-62827 · Email & office · Microsoft · reported by secure@microsoft.comHigh 8.8
Improper authentication in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.
- Product
- Microsoft SharePoint Enterprise Server 2016
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 11, 2026Server-side request forgery (ssrf) in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.CVE-2026-58639 · Email & office · Microsoft · reported by secure@microsoft.comMedium 6.5
Server-side request forgery (ssrf) in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
- Product
- Microsoft SharePoint Enterprise Server 2016
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 5, 2026A denial of service vulnerability was identified in GitHub Enterprise Server that allowed an unauthenticated attacker to cause excessive CPU consumption and exhCVE-2026-15996 · Other software · GitHub · reported by product-cna@github.comMedium 6.6
A denial of service vulnerability was identified in GitHub Enterprise Server that allowed an unauthenticated attacker to cause excessive CPU consumption and exhaust the pool of request-handling worker processes by sending a crafted form-encoded HTTP POST request containing deeply nested parameters. Because request parameters were parsed before routing and authentication, any POST endpoint could be used to trigger the condition, which could render the instance unresponsive. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.21 and was fixed in versions 3.20.3, 3.19.7, 3.18.10, and 3.17.16.
- Product
- Enterprise Server
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recorddocs.github.comdocs.github.com
Aug 5, 2026A path traversal vulnerability was identified in GitHub Enterprise Server that allowed an unauthenticated attacker to delete arbitrary files and directories on CVE-2026-17556 · Other software · GitHub · reported by product-cna@github.comHigh 8.8
A path traversal vulnerability was identified in GitHub Enterprise Server that allowed an unauthenticated attacker to delete arbitrary files and directories on the instance, including the entire user storage directory containing Git LFS objects, release assets, attachments, and avatars. The X-GitHub-Request-Id request header was used without sanitization as a filesystem path segment for the upload buffer directory, so a traversal value pointed the buffer at an arbitrary path and the deferred cleanup routine recursively removed the traversed target. Exploitation required only network reachability to the instance and no authentication, and it worked even when private mode was enabled. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.22 and was fixed in versions 3.21.4, 3.20.6, 3.19.10, 3.18.13 and 3.17.19. This vulnerability was reported via the GitHub Bug Bounty program.
- Product
- Enterprise Server
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recorddocs.github.comdocs.github.com
Jul 17, 2026A missing authorization vulnerability was identified in GitHub Enterprise Server that allowed an authenticated user with write access to any repository to read CVE-2026-15783 · Other software · GitHub · reported by product-cna@github.comMedium 5.3
A missing authorization vulnerability was identified in GitHub Enterprise Server that allowed an authenticated user with write access to any repository to read metadata from private repositories they did not have access to, including private repository owners and names, branch names, commit SHAs, commit messages, and the pushing actor. The delegated bypass endpoint resolved a rule suite directly from an attacker-supplied, encoded identifier without verifying that the requesting user could read the rule suite's repository, and because these identifiers are sequential an attacker could enumerate them across the instance. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.22 and was fixed in versions 3.17.18, 3.18.12, 3.19.9, 3.20.5, and 3.21.3. This vulnerability was reported via the GitHub Bug Bounty program.
- Product
- Enterprise Server
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recorddocs.github.comdocs.github.com
Jul 17, 2026A path traversal vulnerability was identified in GitHub Enterprise Server that allowed an attacker who had code execution inside the Dependabot updater containeCVE-2026-15343 · Other software · GitHub · reported by product-cna@github.comHigh 8.6
A path traversal vulnerability was identified in GitHub Enterprise Server that allowed an attacker who had code execution inside the Dependabot updater container to write files to arbitrary repository paths, including GitHub Actions workflow files under .github/workflows/ as the path validation did not check the effective path which the attacker could control through the dependency file's directory and symlink target. If the repository used a pull_request_target workflow or had auto-merge enabled, an injected workflow could execute with access to the repository's GitHub Actions secrets. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.22 and was fixed in versions 3.21.3, 3.20.5, 3.19.9, 3.18.12, 3.17.18.
- Product
- Enterprise Server
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recorddocs.github.comdocs.github.com
Jul 17, 2026A denial of service vulnerability was identified in GitHub Enterprise Server that allowed an authenticated user to cause service disruption by supplying a reposCVE-2026-15007 · Other software · GitHub · reported by product-cna@github.comMedium 5.7
A denial of service vulnerability was identified in GitHub Enterprise Server that allowed an authenticated user to cause service disruption by supplying a repository release notes configuration file containing deeply nested YAML. When release notes were generated, the configuration file was parsed without a nesting depth limit, causing excessive resource consumption that could render the instance unresponsive. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.22 and was fixed in versions 3.17.18, 3.18.12, 3.19.9, 3.20.5, and 3.21.3. This vulnerability was reported via the GitHub Bug Bounty program.
- Product
- Enterprise Server
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recorddocs.github.comdocs.github.com
Jul 16, 2026Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoCVE-2026-62826 · Email & office · Microsoft · reported by secure@microsoft.comMedium 4.6
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
- Product
- Microsoft SharePoint Enterprise Server 2016
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Improper authorization in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.CVE-2026-58277 · Email & office · Microsoft · reported by secure@microsoft.comHigh 8.8
Improper authorization in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.
- Product
- Microsoft SharePoint Enterprise Server 2016
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Improper access control in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.CVE-2026-56157 · Email & office · Microsoft · reported by secure@microsoft.comMedium 5.4
Improper access control in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
- Product
- Microsoft SharePoint Enterprise Server 2016
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoCVE-2026-55135 · Email & office · Microsoft · reported by secure@microsoft.comMedium 4.6
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
- Product
- Microsoft SharePoint Enterprise Server 2016
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoCVE-2026-55126 · Email & office · Microsoft · reported by secure@microsoft.comHigh 7.3
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
- Product
- Microsoft SharePoint Enterprise Server 2016
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Missing authorization in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.CVE-2026-55052 · Email & office · Microsoft · reported by secure@microsoft.comHigh 8.8
Missing authorization in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.
- Product
- Microsoft SharePoint Enterprise Server 2016
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Server-side request forgery (ssrf) in Microsoft Office SharePoint allows an authorized attacker to disclose information over a network.CVE-2026-55051 · Email & office · Microsoft · reported by secure@microsoft.comMedium 6.5
Server-side request forgery (ssrf) in Microsoft Office SharePoint allows an authorized attacker to disclose information over a network.
- Product
- Microsoft SharePoint Enterprise Server 2016
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoCVE-2026-55034 · Email & office · Microsoft · reported by secure@microsoft.comHigh 7.3
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
- Product
- Microsoft SharePoint Enterprise Server 2016
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoCVE-2026-55030 · Email & office · Microsoft · reported by secure@microsoft.comMedium 4.6
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
- Product
- Microsoft SharePoint Enterprise Server 2016
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoCVE-2026-55021 · Email & office · Microsoft · reported by secure@microsoft.comHigh 7.3
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
- Product
- Microsoft SharePoint Enterprise Server 2016
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoCVE-2026-55020 · Email & office · Microsoft · reported by secure@microsoft.comMedium 4.6
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
- Product
- Microsoft SharePoint Enterprise Server 2016
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 14, 2026Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoCVE-2026-55019 · Email & office · Microsoft · reported by secure@microsoft.comMedium 4.6
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
- Product
- Microsoft SharePoint Enterprise Server 2016
- 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.
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.
Not ready to talk yet? Run the free website check and see what Google sees.