CVE-2026-82451

Formwork < 2.3.11 Stored XSS via Referer Header

MEDIUM
6.1
CVSS Score
Published: August 29, 2026 at 01:47 PM UTC
Updated: September 24, 2026 at 02:57 PM UTC
2 products affected across 2 vendorsFormworkFormwork

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Severity
MEDIUM6.1
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

Formwork through 2.3.14 contains a stored cross-site scripting vulnerability in visit tracking that records the Referer header host unescaped. Unauthenticated attackers can craft malicious Referer headers to inject markup that executes in administrator browsers when viewing the Statistics panel.

Affected

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

2.0.0 ≤ v < 2.3.11
Affected range stops below 2.3.11, so it looks safe — our inference, not a vendor statement
2.0.0 ≤ v ≤ 2.3.102.0.0
Vendor states this is fixed in 2.3.11 (unaffected)

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

6.1MEDIUMVulnCheck
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-79

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