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CVE-2013-4107

17
FAUCET Score

CVE-2013-4107 describes a cross-site scripting (XSS) vulnerability in Cryptocat before version 2.0.22, specifically within the handlePresence() function of cryptocat.js. This medium-severity flaw (CVSS 6.1) could allow an attacker to inject malicious scripts into a user's browser, potentially leading to information disclosure or unauthorized actions, requiring user interaction to exploit. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this decade-old vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.0.22CPE matchmatch criteria
cpe:2.3:a:cryptocat_project:cryptocat:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.1MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.11%
Probability of exploitation in next 30 days
EPSS Percentile
62.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0111 is in the 75th percentile among its peer group of 26,236 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, 0.0 Mastodon, and 0.1 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

tobtu.com / decryptocat.php
Product
vuldb.com
Permissions Required
openwall.com / lists/oss-security/2013/07/10/15
Mailing ListThird Party Advisory
securityfocus.com / bid/61096
Third Party AdvisoryVDB Entry