CVE-2024-24157Public exploitNetwork attack vector

Stored script execution via unsanitized post content

Published May 9, 2024 · Updated Mar 25, 2025

Stored XSS in Gnuboard g6 allows remote attackers to execute script in a reader's browser via a crafted board post. The board.py write_update function stores the wr_content parameter without sanitizing HTML tags, so a submitted script element is rendered with the post. Posting requires no privileges according to CISA's assessment, but exploitation requires another user to view the stored content; the demonstrated consequence is browser-context script execution.

CVSS severity6.1
Medium
EPSS probability0.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Gnuboard g6 allows remote attackers to execute script in a reader's browser via a crafted board post. The board.py write_update function stores the wr_content parameter without sanitizing HTML tags, so a submitted script element is rendered with the post. Posting requires no privileges according to CISA's assessment, but exploitation requires another user to view the stored content; the demonstrated consequence is browser-context script execution.

The record

CVE
CVE-2024-24157
Published
May 9, 2024
Updated
Mar 25, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 9, 2024CVE publishedPublication date reported by the CVE source.
  2. Mar 25, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.1CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007JavaScript

Public exploit references

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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