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CVE-2009-4762

23
FAUCET Score

CVE-2009-4762 describes an access control bypass vulnerability in MoinMoin versions 1.7.x before 1.7.3 and 1.8.x before 1.8.3. This flaw allows remote attackers to circumvent intended access restrictions by requesting specific items, due to incorrect parent ACL checks during hierarchical ACL processing. With a CVSS score of 7.5 (High), this vulnerability is easily exploitable over the network with low attack complexity, potentially leading to partial confidentiality, integrity, and availability impacts. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.7.0CPE matchmatch criteria
cpe:2.3:a:moinmo:moinmoin:1.7.0:*:*:*:*:*:*:*
1.7.1CPE matchmatch criteria
cpe:2.3:a:moinmo:moinmoin:1.7.1:*:*:*:*:*:*:*
1.7.2CPE matchmatch criteria
cpe:2.3:a:moinmo:moinmoin:1.7.2:*:*:*:*:*:*:*
1.8.0CPE matchmatch criteria
cpe:2.3:a:moinmo:moinmoin:1.8.0:*:*:*:*:*:*:*
1.8.1CPE matchmatch criteria
cpe:2.3:a:moinmo:moinmoin:1.8.1:*:*:*:*:*:*:*

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
3.00%
Probability of exploitation in next 30 days
EPSS Percentile
86.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0300 is in the 75th percentile among its peer group of 51,455 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

Patch Available

Vendor Patches (2)

pippatch availablevia ghsa
Product: moinFixed in: 1.7.3
pippatch availablevia ghsa
Product: moinFixed in: 1.8.3

Vendor Advisories (1)

pipGHSA-jj23-fj2v-m872high

MoinMoin Improper Access Control vulnerability

May 2, 2022

References

hg.moinmo.in / moin/1.7/rev/897cdbe9e8f2
Patch
hg.moinmo.in / moin/1.8/rev/897cdbe9e8f2
Patch
moinmo.in / SecurityFixes
Vendor Advisory
secunia.com / advisories/39887
ubuntu.com / usn/usn-941-1
debian.org / security/2010/dsa-2014
securityfocus.com / bid/35277
vupen.com / english/advisories/2010/0600
Vendor Advisory
vupen.com / english/advisories/2010/1208