CVE-2021-3014 json
In MikroTik RouterOS through 2021-01-04, the hotspot login page is vulnerable to reflected XSS via the target parameter.
published 2021-01-04 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-26367
- cvss
- 6.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.9%
- EPSS 0.9% chance of exploitation in 30 days, percentile 61%
- public exploits
- 0
- none known
Summary
In MikroTik RouterOS through 2021-01-04, the hotspot login page is vulnerable to reflected XSS via the target parameter.
Exploit prediction
0.94% chance of exploitation in the next 30 days, higher than 61% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- m4dm0e.github.io https://m4dm0e.github.io/2021/01/04/mikrotik-xss-reflected.html referenced PoC, tagged "exploit" by a source, unverified
- github.com https://github.com/M4DM0e/m4dm0e.github.io/blob/gh-pages/_posts/2021-01-04-mikrotik-xss-reflected.md referenced PoC, tagged "exploit" by a source, unverified
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
-
m4dm0e.github.io
/2021/01/04/mikrotik-xss-reflected.html
exploit, third-party-advisory
-
github.com
/M4DM0e/m4dm0e.github.io/blob/gh-pages/_posts/2021-01-04-mikrotik-xss-reflected.md
exploit, third-party-advisory
Sources
- CVE List CVE-2021-3014
- NVD CVE-2021-3014
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.