PYSEC-2026-2462 Dulwich doesn't sanitize commit subjects in `porcelain.format_patch`

Impact dulwich.porcelain.formatpatchoutdir=... derives each patch filename from the commit's subject line. Prior to this fix, getsummary only replaced spaces with dashes - path separators /, , parent-directory components .., and other filename-hostile characters e.g. : were preserved verbatim and...

Open WebUI has stored XSS via unsanitized Office/Excel/DOCX file preview rendering ({@html} without DOMPurify)

Related advisoryThis advisory tracks a regression of the original Excel-preview XSS that was publicly disclosed and patched under GHSA-jwf8-pv5p-vhmc patched in v0.8.0. The same root cause — XLSX.utils.sheettohtml output rendered via @html excelHtml without DOMPurify — was reintroduced sometime...

PYSEC-2026-2731 Open WebUI has stored XSS via unsanitized Office/Excel/DOCX file preview rendering ({@html} without DOMPurify)

Related advisory This advisory tracks a regression of the original Excel-preview XSS that was publicly disclosed and patched under GHSA-jwf8-pv5p-vhmc patched in v0.8.0. The same root cause — XLSX.utils.sheettohtml output rendered via @html excelHtml without DOMPurify — was reintroduced sometime...

PYSEC-2026-2694 Open WebUI has XSS via SVG in /api/v1/channels/webhooks/{webhook_id}/profile/image

As part of our research on improving our AI pentest, we have uncovered the following issue in Open WebUI. We've manually verified and tided up the report, but you can also find the original agent finding at the bottom of this report. Summary The channel webhook create/update flow accepts arbitrar...

Lemur: LDAP Filter Injection enables post-authentication privilege escalation

Description OverviewLemur's LDAP authentication module lemur/auth/ldap.py constructs LDAP search filters using unsanitized user input via Python string interpolation. An authenticated LDAP user can inject LDAP filter metacharacters through the username field to manipulate group membership queries...

django-mdeditor is Missing Authentication for Critical Function

All versions of the package django-mdeditor are vulnerable to Missing Authentication for Critical Function in the image upload endpoint. An attacker can upload malicious files and achieve arbitrary code execution since this endpoint lacks authentication protection and proper sanitisation of file...

PraisonAI Vulnerable to Stored XSS via Unsanitized Agent Output in HTML Rendering (nh3 Not a Required Dependency)

SummaryThe Flask API endpoint in src/praisonai/api.py renders agent output as HTML without effective sanitization. The sanitizehtml function relies on the nh3 library, which is not listed as a required or optional dependency in pyproject.toml. When nh3 is absent the default installation, the...

PraisonAI has Memory State Leakage and Path Traversal in MultiAgent Context Handling

SummaryThe MultiAgentLedger and MultiAgentMonitor components in the provided code exhibit vulnerabilities that can lead to context leakage and arbitrary file operations. Specifically:1. Memory State Leakage via Agent ID Collision: The MultiAgentLedger uses a dictionary to store ledgers by agent I...

PYSEC-2026-2917 PraisonAI has Template Injection in Agent Tool Definitions

Summary Direct insertion of unescaped user input into template-rendering tools allows arbitrary code execution via specially crafted agent instructions. Details The createagentcentrictools function returns tools like acpcreatefile that process file content using template rendering. When user inpu...

PYSEC-2026-2910 PraisonAI Vulnerable to Stored XSS via Unsanitized Agent Output in HTML Rendering (nh3 Not a Required Dependency)

Summary The Flask API endpoint in src/praisonai/api.py renders agent output as HTML without effective sanitization. The sanitizehtml function relies on the nh3 library, which is not listed as a required or optional dependency in pyproject.toml. When nh3 is absent the default installation, the...

CVE-2026-4765

Self Cross-Site Scripting Self-XSS vulnerability in the RD Station Conversas chat feature. The vulnerability lies in the ‘name’ parameter of the initialisation process due to incorrect sanitisation of user-supplied input. Exploitation allows specially crafted JavaScript code to be injected, which...

CVE-2026-9820

Mattermost versions 11.7.x = 11.7.2, 10.11.x = 10.11.19 fail to sanitize team objects returned by the scheme teams endpoint, which allows a user with the User Manager role to obtain invite links for private teams and use them to join or share access to those teams via the scheme teams API...

CVE-2026-4765

RD Station Conversas (also known as Tallos Chat) is affected by a Stored Cross-Site Scripting (XSS) vulnerability in the name parameter of the chat initialization process, caused by insufficient sanitisation of user-supplied input. The initial CVE classification describes it as Self-XSS with impa...

BIT-GITLAB-2026-6896 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab

GitLab has remediated an issue in GitLab EE affecting all versions from 13.11 before 18.11.7, 19.0 before 19.0.4, and 19.1 before 19.1.2 that under certain conditions could have allowed an authenticated user with developer-role permissions to execute arbitrary scripts in another user's browser...

BIT-GITLAB-2026-13320 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.7 before 18.11.7, 19.0 before 19.0.4, and 19.1 before 19.1.2 that under certain conditions could have allowed an authenticated user to execute arbitrary scripts in another user's browser session due to improper...

PT-2026-59392

Summary The terminal-server reverse proxy in backend/open webui/routers/terminals.py does not fully confine the user-controlled path segment before forwarding it to an admin-configured terminal server. An authenticated user who has been granted access to a terminal server can craft path values...

PT-2026-59619

Summary The packages.js template at src/pyload/webui/app/themes/modern/templates/js/packages.js:172 interpolates a stored link URL into a template literal inside single-quoted HTML and then writes the result to the DOM via $div.htmlhtml. No escaping runs between the API value and innerHTML. An...

PT-2026-59551

Summary Direct insertion of unescaped user input into template-rendering tools allows arbitrary code execution via specially crafted agent instructions. Details The create agent centric tools function returns tools like acp create file that process file content using template rendering. When user...

The vulnerability of the usb_p910() function in the /cgi-bin/adm.cgi script of the Wavlink WL-NU516U1 wireless USB printer software allows a hacker to execute any command they desire.

The vulnerability of the usbp910 function in the /cgi-bin/adm.cgi script of the Wavlink WL-NU516U1 wireless USB printer software is related to the lack of measures taken to clean data at the control level. Exploiting this vulnerability could allow an attacker to execute arbitrary commands remotel...

The vulnerability of the setDmzCfg function in the /cgi-bin/cstecgi.cgi file of the CGI Handler component of the TOTOLINK A8000RU router’s software, allowing a malicious user to execute arbitrary commands.

The vulnerability of the setDmzCfg function in the /cgi-bin/cstecgi.cgi file of the CGI Handler component of the TOTOLINK A8000RU router’s software is related to the lack of measures taken to neutralize special elements. Exploiting this vulnerability allows a remote attacker to execute arbitrary...