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Fencer Vulns
medium 6.1

CVE-2023-5307 json

Photos and Files Contest Gallery – Contact Form < 21.2.8.1 - Unauthenticated Stored XSS via HTTP Headers

published 2023-10-31 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-57630

cvss
6.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 48%
public exploits
0
none known

Summary

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.

Patch / fix

  • Unknown Photos and Files Contest Gallery 21.2.8.1

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
18 mo ago

Exploit prediction

0.59% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • wpscan.com https://wpscan.com/vulnerability/6fac1e09-21ab-430d-b56d-195e7238c08c referenced PoC, tagged "exploit" by a source, unverified
  • research.cleantalk.org https://research.cleantalk.org/cve-2023-5307-photos-and-files-contest-gallery-contact-form-21-2-8-1-unauthenticated-stored-xss-via-http-headers referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CNA 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected products

  • Unknown Photos and Files Contest Gallery

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.