Medium severity5.4NVD Advisory· Published Nov 11, 2026
CVE-2026-126498
CVE-2026-126498
Description
WriteFreely before 0.17.3 contains a stored cross-site scripting vulnerability that allows authenticated authors to inject HTML by supplying a malicious post slug via the CreatePost API. The raw slug is concatenated into an anchor by augmentReadingDestination() for paid-shortcode posts, executing script for RSS/Atom feed readers, newsletter recipients and ActivityPub viewers.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
1- Range: <0.17.3
Patches
Vulnerability mechanics
References
6- github.com/writefreely/writefreely/blob/v0.17.2/database.gonvd
- github.com/writefreely/writefreely/blob/v0.17.2/postrender.gonvd
- github.com/writefreely/writefreely/commit/d7231d81a914f1314a218d5e8fde6e0341391ccdnvd
- github.com/writefreely/writefreely/releases/tag/v0.17.3nvd
- github.com/writefreely/writefreely/security/advisories/GHSA-cwxm-8ch5-j2vhnvd
- www.vulncheck.com/advisories/writefreely-before-0.17.3-stored-xss-via-unsanitized-post-slugnvd
News mentions
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