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CVE-2013-10031

24
FAUCET Score

CVE-2013-10031 describes a high-severity vulnerability in Plack-Middleware-Session versions prior to 0.17, where it is susceptible to HMAC comparison timing attacks. This allows an unauthenticated attacker to potentially gain unauthorized access to sensitive information with low attack complexity. While the CVSS score is 7.5, indicating a significant risk, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.17CPE matchmatch criteria
cpe:2.3:a:plack:plack-middleware-session:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.26%
Probability of exploitation in next 30 days
EPSS Percentile
17.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0026 is in the 3rd percentile among its peer group of 51,485 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 (1)

github_advisorypatch availablevia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2013-10031Important

Plack-Middleware-Session: Plack-Middleware-Session: HMAC comparison timing attack vulnerability

Dec 9, 2025

References

github.com / plack/Plack-Middleware-Session/commit/b7f0252269ba1bb812b5dc02303754fe94c808e4
Patch