XSS in Contest-Gallery Contest Gallery

CVE-2023-5307

The Photos and Files Contest Gallery WordPress plugin before 21.2.8.1 does not sanitise and escape some parameters, which could allow unauthenticated users to perform Cross-Site Scripting attacks via certain headers.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.005 (40.0th percentile) — read the EPSS interpretation.

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.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2023-5307?
CVE-2023-5307 is a medium-severity vulnerability in Contest-Gallery Contest Gallery, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2023-10-31.
How severe is CVE-2023-5307?
Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2023-5307 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.