its CSS Stringify Output · PostCSS has XSS via Unescaped </style>
Affects MicrosoftSource GCVE Database
Not known to be exploited.
Data as of 27 Oct 2026, 00:12 UTC
Rated High by Threat Radar's AI analysis · No CVSS score from NVD or the CNA
Exploitation evidence
Disclosed: evidence found.
CVE published 2 Apr 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Microsoft Security Response Center Microsoft | Affected
| Fixed in– |
AI-suggested
Users should monitor Microsoft Security Response Center advisories for updates. Until a fix is available, cautious handling of CSS inputs and outputs is advised.
Description
CVE-2026-41305 is a vulnerability in PostCSS version 3.0 where unescaped </style> tags in CSS stringify output can lead to cross-site scripting (XSS). This flaw involves improper escaping of style tags in CSS output, potentially allowing injection of malicious scripts.