Is CVE-2011-5287 being actively exploited?

CVE-2011-5287 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2011-5287?

CVE-2011-5287 has a CVSS 2.0 base score of 4.3 (MEDIUM).

CVE-2011-5287

MEDIUM · CVSS 4.3EPSS 1.0%EU EUVD

Multiple cross-site scripting (XSS) vulnerabilities in HESK before 2.4.1 allow remote attackers to inject arbitrary web script or HTML via the (1) hesk_settings[tmp_title] or (2) hesklang[ENCODING] parameter to inc/header.inc.php; the hesklang[attempt] parameter to (3) inc/assignment_search.inc.php, (4) inc/attachments.inc.php, (5) inc/common.inc.php, (6) inc/database.inc.php, (7) inc/prepare_ticket_search.inc.php, (8) inc/print_tickets.inc.php, (9) inc/show_admin_nav.inc.php, (10) inc/show_search_form.inc.php, or (11) inc/ticket_list.inc.php; or (12) the PATH_INFO to language/en/text.php.

Key facts

CVSS score: 4.3 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:M/Au:N/C:N/I:P/A:N
Weakness (CWE): CWE-79
EPSS score: 1.0% (62th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2011-5186)
Published: January 1, 2015
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2011-5186 in the EU Vulnerability Database. Last updated in EUVD on September 16, 2024.

View on the EU Vulnerability Database

Affected products

hesk / hesk

References

https://www.htbridge.com/advisory/HTB23030(Exploit)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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