CVE-2021-24418 json
Smooth Scroll Page Up/Down Buttons <= 1.4 - Authenticated Stored XSS via psb_positioning
published 2021-07-12 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-11330
- cvss
- 4.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 50%
- public exploits
- 0
- none known
Summary
The Smooth Scroll Page Up/Down Buttons WordPress plugin through 1.4 does not properly sanitise and validate its psb_positioning settings, allowing high privilege users such as admin to set an XSS payload in it, which will be executed in all pages of the blog
Exploit prediction
0.63% chance of exploitation in the next 30 days, higher than 50% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- wpscan.com https://wpscan.com/vulnerability/1512bba9-89e2-493d-b85d-10c7acb903db referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 4.8 | CVSS:3.1/AV:N/AC:L/PR:H/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
- Mark Senff Smooth Scroll Page Up/Down Buttons
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
Sources
- CVE List CVE-2021-24418
- NVD CVE-2021-24418
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.