CVE-2020-21316

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-06-15 · updated 2026-06-17
Weakness: CWE-79

Description

A Cross-site scripting (XSS) vulnerability exists in the comment section in ZrLog 2.1.3, which allows remote attackers to inject arbitrary web script and stolen administrator cookies via the nickname parameter and gain access to the admin panel.

Affected products

Zrlog: 2.1.3

References

https://gist.github.com/T-pod/d9405dbd61243990d65d55c5df0fcbe6
https://github.com/94fzb/zrlog/commit/b921c1ae03b8290f438657803eee05226755c941
https://github.com/94fzb/zrlog/issues/56
https://gist.github.com/T-pod/d9405dbd61243990d65d55c5df0fcbe6
https://github.com/94fzb/zrlog/commit/b921c1ae03b8290f438657803eee05226755c941
https://github.com/94fzb/zrlog/issues/56

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