CVE-2021-24877 json
MainWP Child < 4.1.8 - Admin+ SQL Injection
published 4y ago modified 4mo ago also EUVD-2021-11789
- cvss
- 7.2
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.3%
- EPSS 1.3% chance of exploitation in 30 days, percentile 70%
- public exploits
- 0
- none known
Summary
The MainWP Child WordPress plugin before 4.1.8 does not validate the orderby and order parameter before using them in a SQL statement, leading to an SQL injection exploitable by high privilege users such as admin when the Backup and Staging by WP Time Capsule plugin is installed
Patch / fix
- mainwp mainwp_child 4.1.8
Is CVE-2021-24877 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerExploit prediction
1.28% chance of exploitation in the next 30 days, higher than 70% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- wpscan.com https://wpscan.com/vulnerability/b09fe120-ab9b-44f2-b50d-3b4b299d6d15 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.2 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.0 | AV:N/AC:M/Au:S/C:P/I:P/A:P |
Affected products
- Unknown MainWP Child - Securely connects sites to the MainWP WordPress Manager Dashboard
Classification
- Weakness
-
- CWE-89 Improper Neutralization of Special Elements used in an SQL Command
- Technology feeds
References
-
wpscan.com
/vulnerability/b09fe120-ab9b-44f2-b50d-3b4b299d6d15
exploit, third-party-advisory
Sources
- CVE List CVE-2021-24877
- NVD CVE-2021-24877
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.