PT-2026-21569 · Bludit · Bludit

Catalin Iovita · Published 2026-02-23 · Updated 2026-02-24 · CVE-2026-27742

Positive Technologies (AI Summary)

CVSS v3.1

5.4

Medium

Base vector

AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions Bludit version 3.16.2

Description The application does not properly sanitize content input on the server side, despite client-side sanitation. An authenticated user can inject JavaScript into the post content field. This injected script executes in the context of a victim’s browser when the content is rendered, potentially allowing session hijacking, credential theft, or content manipulation. The vulnerability exists in the post content functionality.

Recommendations Update to a newer version that contains a fix for this vulnerability. As a temporary workaround, consider carefully reviewing and sanitizing all user-submitted content before publishing it.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-27742

Affected Products

Bludit

References · 7

• 🔥 https://github.com/bludit/bludit/issues/1579 · Exploit
• https://osv.dev/vulnerability/CVE-2026-27742 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-27742 · Security Note
• https://t.me/CVEtracker/45531 · Telegram Post
• https://twitter.com/VulmonFeeds/status/2026107771972714627 · Twitter Post
• https://vulncheck.com/advisories/bludit-stored-xss-in-post-content · Note
• https://twitter.com/CVEnew/status/2026184679502868961 · Twitter Post