CVE-2026-33395
Discourse has stored click‑based XSS via Graphviz SVG javascript: links
5.4
MEDIUM
CVSS 3.1
EPSS 0.23%
描述
Discourse is an open-source discussion platform. Prior to versions 2026.3.0, 2026.2.1, and 2026.1.2, the discourse-graphviz plugin contains a stored cross-site scripting (XSS) vulnerability that allows authenticated users to inject malicious JavaScript code through DOT graph definitions. For instances with CSP disabled only. Versions 2026.3.0, 2026.2.1, and 2026.1.2 contain a patch. As a workaround, disable the graphviz plugin, upgrade to a patched version, or enable a content security policy.
如何修補 CVE-2026-33395
要修補 CVE-2026-33395,請將受影響套件升級到下列已修補版本。
- —升級至 2026.1.2 或更新版本
CVE-2026-33395 正在被利用嗎?
低 — EPSS 為 0.2%,目前沒有觀察到大規模利用活動。
受影響套件(1)
- >= 2026.1.0, < 2026.1.2, >= 2026.2.0, < 2026.2.1, >= 2026.3.0, < 2026.3.0
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
參考連結(5)
- WEBgithub.com/discourse/discourse/commit/0471e68ed0b594bf386e068f228849244b880ef1
- WEBgithub.com/discourse/discourse/commit/0c861df8bea03dcc01b60da6cc7038e6c88de4ee
- WEBgithub.com/discourse/discourse/commit/472f9e1f7855307e489e9eaa6825d5335dfc08b5
- WEBgithub.com/discourse/discourse/security/advisories/GHSA-23c7-gq89-xm5v