CVE-2024-39631Network attack vector

Unauthenticated stored script execution via unescaped input

Published Aug 1, 2024 · Updated Apr 28, 2026

Stored cross-site scripting in Wasiliy Strecker Contest Gallery 23.1.2 and earlier allows remote attackers to inject browser scripts. Public records attribute the flaw to insufficient input sanitization and output escaping but do not identify the affected field, function, or rendering path. No authentication is required; the stored payload executes when a user opens an injected page and can act with that user's site-origin privileges.

CVSS severity7.1
High
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored cross-site scripting in Wasiliy Strecker Contest Gallery 23.1.2 and earlier allows remote attackers to inject browser scripts. Public records attribute the flaw to insufficient input sanitization and output escaping but do not identify the affected field, function, or rendering path. No authentication is required; the stored payload executes when a user opens an injected page and can act with that user's site-origin privileges.

The record

CVE
CVE-2024-39631
Published
Aug 1, 2024
Updated
Apr 28, 2026
Vendor
Wasiliy Strecker / ContestGallery developer
Product
Contest Gallery
Classifications
CWE-79, CAPEC-592, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 1, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=23.1.2
  2. Affected versionversion=0 <=23.1.2 changes=[{"at":"23.1.3","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Wasiliy Strecker / ContestGallery developer · Contest Galleryversion=0 <=23.1.2; version=0 <=23.1.2 changes=[{"at":"23.1.3","status":"unaffected"}]

Published CVSS scores

7.1PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-592Stored XSS
T1059.007JavaScript/JScript

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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