CVE-2026-27742
Received Received - Intake

Stored XSS in Bludit 3.16.2 Post Content Enables Session Hijacking

Vulnerability report for CVE-2026-27742, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-02-23

Last updated on: 2026-02-26

Assigner: VulnCheck

Description

Bludit version 3.16.2 contains a stored cross-site scripting (XSS) vulnerability in the post content functionality. The application performs client-side sanitation of content input but does not enforce equivalent sanitation on the server side. An authenticated user can inject arbitrary JavaScript into the content field of a post, which is stored and later rendered to other users without proper output encoding. When viewed, the injected script executes in the context of the victim’s browser, allowing session hijacking, credential theft, content manipulation, or other actions within the user’s privileges.

CVSS Scores

EPSS Scores

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Meta Information

Published
2026-02-23
Last Modified
2026-02-26
Generated
2026-07-06
AI Q&A
2026-02-24
EPSS Evaluated
2026-07-05
NVD
EUVD

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
bludit bludit to 3.16.2 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Attack-Flow Graph

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Executive Summary

Bludit version 3.16.2 contains a stored cross-site scripting (XSS) vulnerability in the post content functionality.

The application performs client-side sanitation of content input but does not enforce equivalent sanitation on the server side.

An authenticated user can inject arbitrary JavaScript into the content field of a post, which is stored and later rendered to other users without proper output encoding.

When viewed, the injected script executes in the context of the victim’s browser, allowing session hijacking, credential theft, content manipulation, or other actions within the user’s privileges.

Impact Analysis

This vulnerability can allow an attacker to execute arbitrary JavaScript in the browsers of other users who view the affected post.

  • Session hijacking
  • Credential theft
  • Content manipulation
  • Other malicious actions within the privileges of the victim user
Compliance Impact

I don't know

Detection Guidance

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Mitigation Strategies

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