CVE-2021-24659 json
PostX Gutenberg Blocks for Post Grid < 2.4.10 - Contributor+ Stored Cross-Site Scripting
published 2021-09-27 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-11571
- cvss
- 5.4
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 46%
- public exploits
- 0
- none known
Summary
The PostX – Gutenberg Blocks for Post Grid WordPress plugin before 2.4.10 allows users with a role as low as Contributor to perform Stored Cross-Site Scripting attacks via the plugin's block.
Patch / fix
- wpxpo postx_-_gutenberg_blocks_for_post_grid 2.4.10
Exploit prediction
0.55% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 3.5 | AV:N/AC:M/Au:S/C:N/I:P/A:N |
Affected products
- Unknown PostX – Gutenberg Blocks for Post Grid
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
-
wpscan.com
/vulnerability/5f2fe510-7513-4d33-82d9-3107b3b3f2ae
third-party-advisory
Sources
- CVE List CVE-2021-24659
- NVD CVE-2021-24659
Fencer Vulns 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.