What is CVE-2013-2057?

CVE-2013-2057 is a critical-severity vulnerability in Yabb, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2020-02-11.

How severe is CVE-2013-2057?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Arbitrary file upload in Yabb

CVE-2013-2057

YaBB through 2.5.2: 'guestlanguage' Cookie Parameter Local File Include Vulnerability

Vulnerability class: Unrestricted File Upload

Published 2020-02-11 · last modified 2026-06-16.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.021 (81.3th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 81.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.021 · newest: 0.021 · change: 0.000

Affected products

Yabb — versions through 2.5.2

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

www.securityfocus.com/bid/59643 (Broken Link)
exchange.xforce.ibmcloud.com/vulnerabilities/84034 (VDB Entry, Third Party Advisory)
www.openwall.com/lists/oss-security/2013/05/05/1 (Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2013-2057?: CVE-2013-2057 is a critical-severity vulnerability in Yabb, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2020-02-11.
How severe is CVE-2013-2057?: Critical severity. CVSS v3 base score is 9.8 out of 10.