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CVE-2001-0911

25
FAUCET Score

CVE-2001-0911 describes a critical vulnerability in PHP-Nuke 5.1 and related PostNuke versions where user and administrator passwords are insecurely stored in base-64 encoded cookies. This allows remote attackers to easily steal or sniff these cookies and decode them, leading to privilege escalation. With a CVSS score of 7.5 (High), this vulnerability is easily exploitable over the network with low attack complexity, potentially resulting in complete compromise of confidentiality, integrity, and availability. While there is no evidence of active exploitation, nor readily available exploit code in common frameworks like Metasploit or ExploitDB, the vulnerability has garnered significant community discussion, indicating awareness among security researchers.

Impacted Technologies

VendorProductVersion(s)CPE
5.1CPE matchmatch criteria
cpe:2.3:a:francisco_burzi:php-nuke:5.1:*:*:*:*:*:*:*
5.2CPE matchmatch criteria
cpe:2.3:a:francisco_burzi:php-nuke:5.2:*:*:*:*:*:*:*
5.3.1CPE matchmatch criteria
cpe:2.3:a:francisco_burzi:php-nuke:5.3.1:*:*:*:*:*:*:*
0.64CPE matchmatch criteria
cpe:2.3:a:postnuke_software_foundation:postnuke:0.64:*:*:*:*:*:*:*

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
3.87%
Probability of exploitation in next 30 days
EPSS Percentile
89.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0387 is in the 81st percentile among its peer group of 51,553 CVEs.

Social Chatter

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

marc.info
exchange.xforce.ibmcloud.com / vulnerabilities/7596
securityfocus.com / bid/3567
Vendor Advisory