What is CVE-2023-45881?

CVE-2023-45881 is a medium-severity vulnerability in Gibbonedu Gibbon, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2023-11-14.

How severe is CVE-2023-45881?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Is CVE-2023-45881 known to be exploited?

4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Gibbonedu Gibbon

CVE-2023-45881

GibbonEdu Gibbon through version 25.0.0 allows /modules/Planner/resources_addQuick_ajaxProcess.php file upload with resultant XSS. The imageAsLinks parameter must be set to Y to return HTML code. The filename attribute of the bodyfile1 parameter is reflected in the response.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2023-11-14 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.005 (40.6th percentile), scored 2026-09-26.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 40.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Gibbonedu Gibbon

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

herolab.usd.de/security-advisories/usd-2023-0024/ (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2023-45881?: CVE-2023-45881 is a medium-severity vulnerability in Gibbonedu Gibbon, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2023-11-14.
How severe is CVE-2023-45881?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2023-45881 known to be exploited?: 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.