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CVE-2013-2258

16
FAUCET Score

CVE-2013-2258 describes a Nickname User Impersonation vulnerability in Cryptocat versions prior to 2.0.22. This medium-severity flaw (CVSS 5.3) allows an unauthenticated attacker to impersonate a user by manipulating their nickname, leading to a low impact on integrity without affecting confidentiality or availability. There is no evidence of active exploitation, public exploit code, or significant community discussion, indicating a low likelihood of real-world impact.

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

5.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.36%
Probability of exploitation in next 30 days
EPSS Percentile
68.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0136 is in the 50th percentile among its peer group of 23,723 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 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 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
Vendor Advisory
openwall.com / lists/oss-security/2013/07/10/15
Mailing ListThird Party Advisory
securityfocus.com / bid/61088
Third Party AdvisoryVDB Entry