CVE-2024-34831: cross-site scripting (XSS) vulnerability in Gibbon Core v26.0.00 allows an attacker to execute arbitrary code

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MEDIUM 6.1DOWNGRADE

CVE-2024-34831 is a medium-severity flaw (CVSS 6.1) affecting gibbon. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

cross-site scripting (XSS) vulnerability in Gibbon Core v26.0.00 allows an attacker to execute arbitrary code via the imageLink parameter in the library_manage_catalog_editProcess.php component.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.8% (top 42%)
CISA exploited list	No
Weakness	CWE-79
Published	2024-09-10
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: gibbonedu

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-09-10 18:15 UTCPublished CVE record published
2026-06-17 07:34 UTCUpdated Record last modified

gibbonedu gibbon DOWNGRADE

Affected: 26.0.00

Fixed in: no fixed release known

Safe to downgrade to: a release before 26.0.00

1. Check installed version

apt-cache policy gibbon || rpm -q gibbon || gibbon --version

2. No fixed release: DOWNGRADE to a release before 26.0.00 (Debian / Ubuntu)

apt-cache madison gibbon sudo apt install gibbon=<VERSION_BEFORE_26.0.00> sudo apt-mark hold gibbon

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list gibbon sudo dnf downgrade gibbon-<VERSION_BEFORE_26.0.00> sudo dnf versionlock add gibbon

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-34831?

gibbon: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2024-34831 being exploited?

CVE-2024-34831 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-34831 affect?

CVE-2024-34831 affects gibbon. Severity is medium (CVSS 6.1). cross-site scripting (XSS) vulnerability in Gibbon Core v26.0.00 allows an attacker to execute arbitrary code via the imageLink parameter in the library_manage_catalog_editProcess.php component.

How urgent is CVE-2024-34831?

Priority 41/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2025-26211 LOW 3.7 UPGRADE Gibbon before 29.0.00 allows CSRF.
CVE-2024-51337 LOW 3.5 UPGRADE Cross Site Scripting vulnerability in Gibbon before v.27.0.01 and fixed in v.28.0.00 allows a remote attacker
CVE-2024-24725 HIGH 8.8 UPGRADE Gibbon through 26.0.00 allows remote authenticated users to conduct PHP deserialization attacks via columnOrde
CVE-2024-24724 CRITICAL 9.8 UPGRADE Gibbon through 26.0.00 allows /modules/School%20Admin/messengerSettings.php Server Side Template Injection lea

References

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