CVE-2021-37524 json
Cross Site Scripting (XSS) vulnerability in FusionPBX 4.5.26 allows remote unauthenticated users to inject arbitrary web script or HTML via…
published 2022-07-01 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-24086
- cvss
- 6.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 56%
- public exploits
- 0
- none known
Summary
Cross Site Scripting (XSS) vulnerability in FusionPBX 4.5.26 allows remote unauthenticated users to inject arbitrary web script or HTML via an unsanitized "path" parameter in resources/login.php.
Patch / fix
Exploit prediction
0.78% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-08).
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 |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/fusionpbx/fusionpbx/commit/c3b811393de63e324eaa64fe5c9ea3fce428fe1a
patch, third-party-advisory
-
fusionpbx.com
/app/tickets/ticket_edit.php?id=4a0666cd-8c12-46ae-bc0a-02f007b62cdb
permissions-required, vendor-advisory
Sources
- CVE List CVE-2021-37524
- NVD CVE-2021-37524
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