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Fencer Vulns
high 7.5

CVE-2005-1820 json

zboard.php in Zeroboard version 4.1pl2 to 4.1pl5 allows remote attackers to execute arbitrary PHP code via improper quoting when using the…

published 2005-06-01 21 y ago modified 2026-06-16 4 mo ago also EUVD-2005-1822

cvss
7.5
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.7%
EPSS 2.7% chance of exploitation in 30 days, percentile 85%
public exploits
1
Exploit-DB

Summary

zboard.php in Zeroboard version 4.1pl2 to 4.1pl5 allows remote attackers to execute arbitrary PHP code via improper quoting when using the preg_replace function.

Timeline

  1. First public exploit (EDB-1020)
  2. Published

Exploit prediction

2.66% chance of exploitation in the next 30 days, higher than 85% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-1020 ZeroBoard 4.1 - 'preg_replace' Remote Nobody Shell webapps, 2005-05-31
  • securityfocus.com http://www.securityfocus.com/bid/13823 referenced PoC, tagged "exploit" by a source, unverified
  • securiteam.com http://www.securiteam.com/exploits/5KP0V0AFPA.html 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.