CVE-2024-34831Public exploitNetwork attack vector

Privilege escalation via unsanitized book image link

Published Sep 10, 2024 · Updated Sep 10, 2024

Stored XSS in Gibbon Core 26.0.00 allows remote authenticated users to run scripts in another user's browser through a book image link. The catalog edit processor stores imageLink without neutralizing attribute-breaking input, and the library view inserts it into an image element. A user with Manage Catalog permission can plant the value; execution occurs when a more privileged user loads or hovers over the affected image, enabling administrator-account creation.

CVSS severity6.1
Medium
EPSS probability0.84%
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 Gibbon Core 26.0.00 allows remote authenticated users to run scripts in another user's browser through a book image link. The catalog edit processor stores imageLink without neutralizing attribute-breaking input, and the library view inserts it into an image element. A user with Manage Catalog permission can plant the value; execution occurs when a more privileged user loads or hovers over the affected image, enabling administrator-account creation.

The record

CVE
CVE-2024-34831
Published
Sep 10, 2024
Updated
Sep 10, 2024
Vendor
Gibbon Foundation
Product
Gibbon Core
Classifications
CWE-79
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 10, 2024CVE publishedPublication date reported by the CVE source.
  2. Sep 10, 2024Record 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=v26.0.00

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Gibbon Foundation · Gibbon Coreversion=v26.0.00

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

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

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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