CVE-2011-4542Hastymail2 SQL Injection
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.
Published Nov 30, 2011 · Updated Apr 28, 2026
Key Facts
Patch immediately- CVE-2011-4542 is a high-severity vulnerability (CVSS 7.5 v2) affecting Hastymail2.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 24% probability of exploitation in the next 30 days.
- Fixed versions are available, including Hastymail2 2.1.1.
- Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Scores
CVSS v2
7.5
AV:N/AC:L/Au:N/C:P/I:P/A:P
EPSS (30-day exploit likelihood)
24%
Higher than 97.8% of all scored CVEs
Exploit maturity
Weaponized
ATLAS score
48/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Weaponized
Public exploit code
2
Proof-of-concept links
In-the-wild evidence
0
Reports of active use
Description
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.
Affected Products
28 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Hastymail2Hastymail | 1.0, 1.01, 1.1-rc1, 1.1-rc2, 2.0, 2.0.1, 2.0.2, 2.0.3 | 2.1.1 |
Patched Releases
Hastymail2
2.1.1
Timeline
Publicly disclosed
Nov 30, 2011
Last updated
Apr 28, 2026
Weakness Type
- CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
References
- exploitMSF hastymail_exec.rb
- exploitExploitDB-19758
- other48308
- otherdognaedis.com · DGS-SEC-3.html
FAQ
Common Questions.
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.
Affected: Hastymail2 versions 1.0, 1.01, 1.1-rc1, 1.1-rc2, 2.0, 2.0.1, 2.0.2, 2.0.3. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Hastymail2 2.1.1.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Is CVE-2011-4542 On Your Attack Surface?
Brandefense matches it against the products discovered on your perimeter and opens a finding the day a CVE like this is listed.
Request A Demo