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Fencer Vulns
high 7.5

CVE-2002-0955 json

Cross-site scripting vulnerability in YaBB.cgi for Yet Another Bulletin Board (YaBB) 1 Gold SP1 and earlier allows remote attackers to exec…

published 2002-08-31 24 y ago modified 2026-06-16 4 mo ago also EUVD-2002-0944

cvss
7.5
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
8.6%
EPSS 8.6% chance of exploitation in 30 days, percentile 95%
public exploits
1
Exploit-DB

Summary

Cross-site scripting vulnerability in YaBB.cgi for Yet Another Bulletin Board (YaBB) 1 Gold SP1 and earlier allows remote attackers to execute arbitrary script as other web site visitors via script in the num parameter, which is not filtered in the resulting error message.

Timeline

  1. First public exploit (EDB-21573)
  2. Published

Exploit prediction

8.55% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-21573 YaBB 1 - Invalid Topic Error Page Cross-Site Scripting webapps, 2002-06-21
  • securityfocus.com http://www.securityfocus.com/bid/5078 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

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.