CVE-2020-20502 json
Cross Site Request Forgery found in yzCMS v.2.0 allows a remote attacker to execute arbitrary code via the token check function.
published 2023-06-20 3 y ago modified 2026-06-17 4 mo ago also EUVD-2020-13289
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 40%
- public exploits
- 0
- none known
Summary
Cross Site Request Forgery found in yzCMS v.2.0 allows a remote attacker to execute arbitrary code via the token check function.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 22 mo ago
Exploit prediction
0.46% chance of exploitation in the next 30 days, higher than 40% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/yzmcms/yzmcms/issues/27 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
| NVD | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
Classification
- Weakness
-
- CWE-352 Cross-Site Request Forgery
References
-
github.com
/yzmcms/yzmcms/issues/27
exploit, issue-tracking
-
yzmcms.com
/
product
Sources
- CVE List CVE-2020-20502
- NVD CVE-2020-20502
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