CVE-2021-24371 json
RSVPMaker < 8.7.3 - Authenticated (admin+) SSRF
published 2021-08-02 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-11284
- cvss
- 2.7
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.0%
- EPSS 1.0% chance of exploitation in 30 days, percentile 63%
- public exploits
- 0
- none known
Summary
The Import feature of the RSVPMaker WordPress plugin before 8.7.3 (/wp-admin/tools.php?page=rsvpmaker_export_screen) takes an URL input and calls curl on it, without first validating it to ensure it's a remote one. As a result, a high privilege user could use that feature to scan the internal network via a SSRF attack.
Patch / fix
Exploit prediction
1.01% chance of exploitation in the next 30 days, higher than 63% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- codevigilant.com https://codevigilant.com/disclosure/2021/wp-plugin-rsvpmaker/ referenced PoC, tagged "exploit" by a source, unverified
- wpscan.com https://wpscan.com/vulnerability/63be225c-ebee-4cac-b43e-cf033ee7425d referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 2.7 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N |
| NVD | 2.0 | 4.0 | AV:N/AC:L/Au:S/C:P/I:N/A:N |
Affected products
- Unknown RSVPMaker
Classification
- Weakness
-
- CWE-918 Server-Side Request Forgery
- Technology feeds
References
-
codevigilant.com
/disclosure/2021/wp-plugin-rsvpmaker/
exploit, patch, third-party-advisory
-
wpscan.com
/vulnerability/63be225c-ebee-4cac-b43e-cf033ee7425d
exploit, third-party-advisory
Sources
- CVE List CVE-2021-24371
- NVD CVE-2021-24371
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