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Fencer Intel
medium 4.3

CVE-2013-5939 json

Multiple cross-site scripting (XSS) vulnerabilities in the Guestbook module for PHPCMS allow remote attackers to inject arbitrary web scrip…

published 12y ago modified 4mo ago also EUVD-2013-5773

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.9%
EPSS 1.9% chance of exploitation in 30 days, percentile 79%
public exploits
0
none known

Summary

Multiple cross-site scripting (XSS) vulnerabilities in the Guestbook module for PHPCMS allow remote attackers to inject arbitrary web script or HTML via the (1) list or (2) introduce parameter to index.php.

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Exploit prediction

1.85% chance of exploitation in the next 30 days, higher than 79% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • packetstormsecurity.com http://packetstormsecurity.com/files/123746/PHPCMS-Guestbook-Cross-Site-Scripting.html referenced PoC, tagged "exploit" by a source, unverified
  • seclists.org http://seclists.org/fulldisclosure/2013/Oct/187 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

Classification

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

References

Sources

Fencer Intel 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.