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CVE-2005-1820

29
FAUCET Score

CVE-2005-1820 describes a critical remote code execution vulnerability in Zeroboard versions 4.1pl2 to 4.1pl5. This flaw allows unauthenticated attackers to execute arbitrary PHP code due to improper quoting within the preg_replace function. With a CVSS score of 7.5, the vulnerability is easily exploitable over the network with low complexity, leading to complete compromise of confidentiality, integrity, and availability. While not listed on the KEV catalog or Hot List, public exploit code exists, though community discussion and media coverage are minimal.

Impacted Technologies

VendorProductVersion(s)CPE
4.1_pl2CPE matchmatch criteria
cpe:2.3:a:zeroboard:zeroboard:4.1_pl2:*:*:*:*:*:*:*
4.1_pl3CPE matchmatch criteria
cpe:2.3:a:zeroboard:zeroboard:4.1_pl3:*:*:*:*:*:*:*
4.1_pl4CPE matchmatch criteria
cpe:2.3:a:zeroboard:zeroboard:4.1_pl4:*:*:*:*:*:*:*
4.1_pl5CPE matchmatch criteria
cpe:2.3:a:zeroboard:zeroboard:4.1_pl5:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.66%
Probability of exploitation in next 30 days
EPSS Percentile
84.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
ExploitDB: EDB-1020 · May 31, 2005
This CVE's current EPSS score of 0.0266 is in the 72nd percentile among its peer group of 51,485 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

pandora.sapzil.info / text/notify/20050123.zb41advisory.php
securiteam.com / exploits/5KP0V0AFPA.html
Exploit
securityfocus.com / bid/13823
Exploit