CVE-2021-26812
CVE-2021-26812 is a medium-severity vulnerability in Jitsi Meet with a CVSS 3.x base score of 6.1. Its EPSS exploit-prediction score of 97% places it in the 100th percentile, indicating an elevated likelihood of exploitation. 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: 97% (100th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-79
- Affected product: Jitsi Meet
- Published:
- Last modified:
Description
Cross Site Scripting (XSS) in the Jitsi Meet 2.7 through 2.8.3 plugin for Moodle via the "sessionpriv.php" module. This allows attackers to craft a malicious URL, which when clicked on by users, can inject javascript code to be run by the application.
Frequently asked questions
- What is CVE-2021-26812?
- Cross Site Scripting (XSS) in the Jitsi Meet 2.7 through 2.8.3 plugin for Moodle via the "sessionpriv.php" module. This allows attackers to craft a malicious URL, which when clicked on by users, can inject javascript code to be run by the application.
- How severe is CVE-2021-26812?
- CVE-2021-26812 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-2021-26812 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 97% (100th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-26812?
- CVE-2021-26812 affects Jitsi Meet. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-26812?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-26812 published?
- CVE-2021-26812 was published on 2021-04-14 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:jitsi:meet:*:*:*:*:*:moodle:*:*
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