CVE-2021-24518 json
WPFront Notification Bar < 2.0.0.07176 - Authenticated Stored XSS
published 2021-08-16 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-11430
- cvss
- 4.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 53%
- public exploits
- 0
- none known
Summary
The WPFront Notification Bar WordPress plugin before 2.0.0.07176 does not sanitise or escape its Custom CSS setting, allowing high privilege users such as admin to set XSS payload in it even when the unfiltered_html capability is disallowed, leading to an authenticated Stored Cross-Site Scripting issue
Patch / fix
- wpfront notification_bar 2.0.0.07176
Exploit prediction
0.69% chance of exploitation in the next 30 days, higher than 53% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- wpscan.com https://wpscan.com/vulnerability/53103cdc-a4bf-40fa-aeb1-790fc7a65f0a referenced PoC, tagged "exploit" by a source, unverified
- packetstormsecurity.com https://packetstormsecurity.com/files/163472/ 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
- Unknown WPFront Notification Bar
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
-
wpscan.com
/vulnerability/53103cdc-a4bf-40fa-aeb1-790fc7a65f0a
exploit, third-party-advisory
-
packetstormsecurity.com
/files/163472/
exploit, third-party-advisory, vdb-entry
Sources
- CVE List CVE-2021-24518
- NVD CVE-2021-24518
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.