CVE-2021-24488 json
Post Grid < 2.1.8 - Reflected Cross-Site Scripting (XSS)
published 5y ago modified 4mo ago also EUVD-2021-11400
- cvss
- 6.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 11.2%
- EPSS 11.2% chance of exploitation in 30 days, percentile 95%
- public exploits
- 1
- Exploit-DB, plus a Nuclei check
Summary
The slider import search feature and tab parameter of the Post Grid WordPress plugin before 2.1.8 settings are not properly sanitised before being output back in the pages, leading to Reflected Cross-Site Scripting issues
Patch / fix
- pickplugins post_grid 2.1.8
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- Published
- First public exploit (EDB-50705)
Exploit prediction
11.24% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- EDB-50705 WordPress Plugin Post Grid 2.1.1 - Cross Site Scripting (XSS) webapps, 2022-02-02
- Nuclei template WordPress Post Grid <2.1.8 - Cross-Site Scripting nuclei detection template
- wpscan.com https://wpscan.com/vulnerability/1fc0aace-ba85-4939-9007-d150960add4a referenced PoC, tagged "exploit" by a source, unverified
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 |
Affected products
- Unknown Post Grid
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
-
wpscan.com
/vulnerability/1fc0aace-ba85-4939-9007-d150960add4a
exploit, third-party-advisory
Sources
- CVE List CVE-2021-24488
- NVD CVE-2021-24488
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.