CVE-2011-4541

Exp

Cross-site scripting (XSS) vulnerability in index.php in Hastymail2 2.1.1 before RC2 allows remote attackers to inject arbitrary web script or HTML via the rs parameter in a mailbox Drafts action.

Published: 2011-11-28 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2011-4541 is rated Exploit Available (56.3/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.61%). Core evidence: 2 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2011-4541

EDB-ID Source Kind Published Link
36347 exploit_db edb 2011-11-22 Exploit-DB ↗
nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2011-4541

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 2.92% 1.61% -1.31%
2 2026-03-18 3.02% 2.92% -0.11%
3 2026-01-23 3.02%

Full EPSS history (13 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2011-4541

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
8.6 2.9 [email protected]

Weakness enumeration for CVE-2011-4541

Affected software / configurations for CVE-2011-4541

Vendor Product Version Raw CPE
hastymail hastymail2 cpe:2.3:a:hastymail:hastymail2:*:beta1:*:*:*:*:*:*
hastymail hastymail2 cpe:2.3:a:hastymail:hastymail2:*:beta2:*:*:*:*:*:*
hastymail hastymail2 cpe:2.3:a:hastymail:hastymail2:*:beta3:*:*:*:*:*:*
hastymail hastymail2 cpe:2.3:a:hastymail:hastymail2:*:rc1:*:*:*:*:*:*
hastymail hastymail2 cpe:2.3:a:hastymail:hastymail2:*:rc2:*:*:*:*:*:*
hastymail hastymail2 cpe:2.3:a:hastymail:hastymail2:*:rc3:*:*:*:*:*:*
hastymail hastymail2 cpe:2.3:a:hastymail:hastymail2:*:rc4:*:*:*:*:*:*
hastymail hastymail2 cpe:2.3:a:hastymail:hastymail2:*:rc5:*:*:*:*:*:*
hastymail hastymail2 cpe:2.3:a:hastymail:hastymail2:*:rc6:*:*:*:*:*:*
hastymail hastymail2 cpe:2.3:a:hastymail:hastymail2:*:rc7:*:*:*:*:*:*
hastymail hastymail2 cpe:2.3:a:hastymail:hastymail2:*:rc8:*:*:*:*:*:*
hastymail hastymail2 cpe:2.3:a:hastymail:hastymail2:*:rc9:*:*:*:*:*:*
hastymail hastymail2 <= 2.1.1 cpe:2.3:a:hastymail:hastymail2:*:rc1:*:*:*:*:*:*
hastymail hastymail2 1.0 cpe:2.3:a:hastymail:hastymail2:1.0:*:*:*:*:*:*:*
hastymail hastymail2 1.01 cpe:2.3:a:hastymail:hastymail2:1.01:*:*:*:*:*:*:*
hastymail hastymail2 1.1 cpe:2.3:a:hastymail:hastymail2:1.1:rc1:*:*:*:*:*:*
hastymail hastymail2 1.1 cpe:2.3:a:hastymail:hastymail2:1.1:rc2:*:*:*:*:*:*
hastymail hastymail2 2.0 cpe:2.3:a:hastymail:hastymail2:2.0:*:*:*:*:*:*:*
hastymail hastymail2 2.0 cpe:2.3:a:hastymail:hastymail2:2.0:a1:*:*:*:*:*:*
hastymail hastymail2 2.0 cpe:2.3:a:hastymail:hastymail2:2.0:a2:*:*:*:*:*:*
hastymail hastymail2 2.0 cpe:2.3:a:hastymail:hastymail2:2.0:b1:*:*:*:*:*:*
hastymail hastymail2 2.0 cpe:2.3:a:hastymail:hastymail2:2.0:b2:*:*:*:*:*:*
hastymail hastymail2 2.0 cpe:2.3:a:hastymail:hastymail2:2.0:b3:*:*:*:*:*:*
hastymail hastymail2 2.0 cpe:2.3:a:hastymail:hastymail2:2.0:rc1:*:*:*:*:*:*
hastymail hastymail2 2.0.1 cpe:2.3:a:hastymail:hastymail2:2.0.1:*:*:*:*:*:*:*
hastymail hastymail2 2.0.2 cpe:2.3:a:hastymail:hastymail2:2.0.2:*:*:*:*:*:*:*
hastymail hastymail2 2.0.3 cpe:2.3:a:hastymail:hastymail2:2.0.3:*:*:*:*:*:*:*
hastymail hastymail2 2.0.4 cpe:2.3:a:hastymail:hastymail2:2.0.4:*:*:*:*:*:*:*
hastymail hastymail2 2.0.5 cpe:2.3:a:hastymail:hastymail2:2.0.5:*:*:*:*:*:*:*

References for CVE-2011-4541

cvelogic Threat Intelligence