What is CVE-2023-5316?

CVE-2023-5316 is a medium-severity vulnerability in Phpmyfaq, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2023-09-30.

How severe is CVE-2023-5316?

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

Is CVE-2023-5316 known to be exploited?

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

XSS in Phpmyfaq

CVE-2023-5316

Cross-site Scripting (XSS) - DOM in GitHub repository thorsten/phpmyfaq prior to 3.1.18.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2023-09-30 · 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: 0.004 (33.5th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 33.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Phpmyfaq
Thorsten Thorsten/phpmyfaq — versions unspecified

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

huntr.dev/bounties/f877e65a-e647-457b-b105-7e5c9f58fb43 (Permissions Required)
github.com/thorsten/phpmyfaq/commit/332d2e4a83251d406ca58dd11c27c598673aa5fa (Patch)

Frequently asked questions

What is CVE-2023-5316?: CVE-2023-5316 is a medium-severity vulnerability in Phpmyfaq, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2023-09-30.
How severe is CVE-2023-5316?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2023-5316 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.