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Fencer Intel
low 3.5

CVE-2014-2021 json

Cross-site scripting (XSS) vulnerability in admincp/apilog.php in vBulletin 4.2.2 and earlier, and 5.0.x through 5.0.5 allows remote authen…

published 12y ago modified 4mo ago also EUVD-2014-2073

cvss
3.5
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.4%
EPSS 3.4% chance of exploitation in 30 days, percentile 88%
public exploits
1
Exploit-DB

Summary

Cross-site scripting (XSS) vulnerability in admincp/apilog.php in vBulletin 4.2.2 and earlier, and 5.0.x through 5.0.5 allows remote authenticated users to inject arbitrary web script or HTML via a crafted XMLRPC API request, as demonstrated using the client name.

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Timeline

  1. First public exploit (EDB-40114)
  2. Published

Exploit prediction

3.39% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-40114 vBulletin 4.x/5.x - AdminCP/ApiLog via xmlrpc API (Authenticated) Persistent Cross-Site Scripting webapps, 2014-10-12
  • seclists.org http://seclists.org/fulldisclosure/2014/Oct/55 referenced PoC, tagged "exploit" by a source, unverified
  • packetstormsecurity.com http://packetstormsecurity.com/files/128691/vBulletin-5.x-4.x-Persistent-Cross-Site-Scripting.html referenced PoC, tagged "exploit" by a source, unverified
  • securityfocus.com http://www.securityfocus.com/bid/70577 referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/tintinweb/pub/tree/master/pocs/cve-2014-2021 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 3.5 AV:N/AC:M/Au:S/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.