CVE-2021-35488
CVE-2021-35488 is a medium-severity vulnerability in Thruk with a CVSS 3.x base score of 6.1. 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 6.1)
- CVSS v2: 4.3
- EPSS exploit prediction: 3% (84th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-79
- Affected product: Thruk
- Published:
- Last modified:
Description
Thruk 2.40-2 allows /thruk/#cgi-bin/status.cgi?style=combined&title={TITLE] Reflected XSS via the host or title parameter. An attacker could inject arbitrary JavaScript into status.cgi. The payload would be triggered every time an authenticated user browses the page containing it.
Frequently asked questions
- What is CVE-2021-35488?
- Thruk 2.40-2 allows /thruk/#cgi-bin/status.cgi?style=combined&title={TITLE] Reflected XSS via the host or title parameter. An attacker could inject arbitrary JavaScript into status.cgi. The payload would be triggered every time an authenticated user browses the page containing it.
- How severe is CVE-2021-35488?
- CVE-2021-35488 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2021-35488 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-35488?
- CVE-2021-35488 affects Thruk. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-35488?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-35488 published?
- CVE-2021-35488 was published on 2021-11-09 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:thruk:thruk:2.40-2:*:*:*:*:*:*:*
More vulnerabilities in Thruk
- CVE-2023-34096 — Medium (CVSS 6.5): Thruk is a multibackend monitoring webinterface which currently supports Naemon, Icinga, Shinken and Nagios as…
- CVE-2021-35489 — Medium (CVSS 6.1): Thruk 2.40-2 allows /thruk/#cgi-bin/extinfo.cgi?type=2&host={HOSTNAME]&service={SERVICENAME]&backend={BACKEND]…
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