CVE-2026-35015
CVE-2026-35015 is a medium-severity vulnerability with a CVSS 3.x base score of 4.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.
Key facts
- Severity: Medium (CVSS 3.x base score 4.6)
- CVSS v4: 5.1
- EPSS exploit prediction: 0% (13th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-31188
- Weakness: CWE-79
- Published:
- Last modified:
Description
Open ISES Tickets before 3.44.2 contains a reflected cross-site scripting vulnerability in do_unit_mail.php that allows authenticated attackers to inject arbitrary JavaScript by passing an unsanitized value through the the_ticket GET parameter directly into a JavaScript variable assignment. Attackers can craft a malicious URL containing a JavaScript payload in the the_ticket parameter that executes in the victim's browser when the URL is visited.
Frequently asked questions
- What is CVE-2026-35015?
- Open ISES Tickets before 3.44.2 contains a reflected cross-site scripting vulnerability in do_unit_mail.php that allows authenticated attackers to inject arbitrary JavaScript by passing an unsanitized value through the the_ticket GET parameter directly into a JavaScript variable assignment. Attackers can craft a malicious URL containing a JavaScript payload in the the_ticket parameter that executes in the victim's browser when the URL is visited.
- How severe is CVE-2026-35015?
- CVE-2026-35015 has a CVSS 3.x base score of 4.6, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2026-35015 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-35015?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-35015 have an EU (EUVD) identifier?
- Yes. CVE-2026-35015 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-31188.
- When was CVE-2026-35015 published?
- CVE-2026-35015 was published on 2026-05-20 and last updated on 2026-06-17.
References
- https://github.com/openises/tickets/commit/ecfeb406a016766cae81c749e14b5145a9f2dbff
- https://github.com/openises/tickets/releases/tag/v3.44.2
- https://www.vulncheck.com/advisories/open-ises-tickets-reflected-xss-via-do-unit-mail-php-the-ticket-parameter
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