CVE-2021-24853 json
QR Redirector < 1.6 - Subscriber+ Arbitrary QR Redirect Response Status Update
published 2021-11-17 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-11765
- cvss
- 4.3
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 39%
- public exploits
- 0
- none known
Summary
The QR Redirector WordPress plugin before 1.6 does not have capability and CSRF checks when saving bulk QR Redirector settings via the qr_save_bulk AJAX action, which could allow any authenticated user, such as subscriber to change the redirect response status code of arbitrary QR Redirects
Patch / fix
- qr_redirector_project qr_redirector 1.6
Exploit prediction
0.45% chance of exploitation in the next 30 days, higher than 39% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- wpscan.com https://wpscan.com/vulnerability/240bed24-0315-4bbf-ba17-e4947e5ecacb referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
Affected products
- Unknown QR Redirector
Classification
- Weakness
- Technology feeds
References
-
wpscan.com
/vulnerability/240bed24-0315-4bbf-ba17-e4947e5ecacb
exploit, third-party-advisory
Sources
- CVE List CVE-2021-24853
- NVD CVE-2021-24853
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.