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Fencer Vulns
high 7.6

CVE-2003-0332 json

The ISAPI extension in BadBlue 1.7 through 2.2, and possibly earlier versions, modifies the first two letters of a filename extension after…

published 2003-05-22 23 y ago modified 2026-06-16 4 mo ago also EUVD-2003-0327

cvss
7.6
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
7.0%
EPSS 7.0% chance of exploitation in 30 days, percentile 94%
public exploits
1
Exploit-DB

Summary

The ISAPI extension in BadBlue 1.7 through 2.2, and possibly earlier versions, modifies the first two letters of a filename extension after performing a security check, which allows remote attackers to bypass authentication via a filename with a .ats extension instead of a .hts extension.

Patch / fix

Timeline

  1. First public exploit (EDB-22620)
  2. Published

Exploit prediction

6.98% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-22620 Working Resources BadBlue 1.7.x/2.x - Unauthorized HTS Access remote, 2003-05-20
  • archives.neohapsis.com http://archives.neohapsis.com/archives/vulnwatch/2003-q2/0075.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 7.6 AV:N/AC:H/Au:N/C:C/I:C/A:C

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.