CVE-2026-63171

Omnispace Agora Project < 26.10.0 Stored XSS via Category Description

MEDIUM
5.4
CVSS Score
Published: October 13, 2026 at 08:04 PM UTC
Updated: October 27, 2026 at 10:14 AM UTC
1 product affected across 1 vendorOmnispace Agora Project

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Severity
MEDIUM5.4
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

Omnispace Agora Project before 26.10.0 contains a stored cross-site scripting vulnerability that allows authenticated attackers to inject malicious script by submitting a crafted forum category description containing a double-quote character that breaks out of an HTML input value attribute. Attackers can exploit the HTMLPurifier configuration that preserves double-quotes to escape the attribute context and execute arbitrary script in the browser of users viewing the forum category.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.4MEDIUMVulnCheck
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-79

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