What is CVE-2011-4542?

CVE-2011-4542 is a vulnerability in Hastymail Hastymail2, classified under SQL Injection. Published 2011-11-30.

Is CVE-2011-4542 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

SQL Injection in Hastymail Hastymail2

CVE-2011-4542

Hastymail2 2.1.1 before RC2 allows remote attackers to execute arbitrary commands via the (1) rs or (2) rsargs[] parameter in a mailbox Drafts action to the default URI.

Vulnerability class: SQL Injection

Published 2011-11-30 · last modified 2026-06-16.

CVSS v2 metric

CVSS v2 base score 7.5 (High). Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.241 (97.8th percentile), scored 2026-09-29.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 97.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.241 · newest: 0.241 · change: 0.000

Affected products

Hastymail Hastymail2 — versions 1.0, 1.01, 1.1

Weakness classification (CWE)

CWE-89 — SQL Injection

Public proof-of-concept exploits

rapid7/metasploit-framework

References

secunia.com/advisories/48308 (third-party-advisory)
www.dognaedis.com/vulns/DGS-SEC-3.html

Frequently asked questions

What is CVE-2011-4542?: CVE-2011-4542 is a vulnerability in Hastymail Hastymail2, classified under SQL Injection. Published 2011-11-30.
Is CVE-2011-4542 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.