CVE-2020-21316 json
A Cross-site scripting (XSS) vulnerability exists in the comment section in ZrLog 2.1.3, which allows remote attackers to inject arbitrary…
published 2021-06-15 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-14089
- cvss
- 6.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.1%
- EPSS 1.1% chance of exploitation in 30 days, percentile 66%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
Exploit prediction
1.12% chance of exploitation in the next 30 days, higher than 66% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/94fzb/zrlog/commit/b921c1ae03b8290f438657803eee05226755c941
patch, third-party-advisory
-
github.com
/94fzb/zrlog/issues/56
patch, third-party-advisory
-
gist.github.com
/T-pod/d9405dbd61243990d65d55c5df0fcbe6
patch, third-party-advisory
Sources
- CVE List CVE-2020-21316
- NVD CVE-2020-21316
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