What is CVE-2013-2258?

CVE-2013-2258 is a medium-severity vulnerability in Cryptocat. CVSS score: 5.3/10. Published 2019-11-04.

How severe is CVE-2013-2258?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Cryptocat

CVE-2013-2258

Cryptocat before 2.0.22 has Nickname User Impersonation

Published 2019-11-04 · last modified 2026-06-16.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.014 (70.6th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 71st percentile — 70.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000

Affected products

Cryptocat — versions before 2.0.22
Cryptocat Project

References

www.openwall.com/lists/oss-security/2013/07/10/15 (Mailing List, Third Party Advisory)
tobtu.com/decryptocat.php (Vendor Advisory)
www.securityfocus.com/bid/61088 (VDB Entry, Third Party Advisory)

Frequently asked questions

What is CVE-2013-2258?: CVE-2013-2258 is a medium-severity vulnerability in Cryptocat. CVSS score: 5.3/10. Published 2019-11-04.
How severe is CVE-2013-2258?: Medium severity. CVSS v3 base score is 5.3 out of 10.