CVE-2021-27370 EXPLOIT
5.4
MEDIUM · CVSS 3.1 · EPSS 3.3% (pctl 88)
Patch early
A public exploit exists.
Description
The Contact page in Monica 2.19.1 allows stored XSS via the Last Name field.
Scoring
| CVSS | 5.4 (MEDIUM, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
| EPSS | 3.27% — more likely to be exploited than 88% of all CVEs |
| Weakness | CWE-79 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2021-02-22 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| monicahq | monica |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Monica 2.19.1 - 'last_name' Stored XSS | 2021-02-23 |
References
- http://packetstormsecurity.com/files/161501/Monica-2.19.1-Cross-Site-Scripting.html
- https://github.com/monicahq/monica/issues/4888
- https://github.com/monicahq/monica/pull/4543
- https://huntr.dev/bounties/2-other-monica/
- http://packetstormsecurity.com/files/161501/Monica-2.19.1-Cross-Site-Scripting.html
- https://github.com/monicahq/monica/issues/4888
- https://github.com/monicahq/monica/pull/4543
- https://huntr.dev/bounties/2-other-monica/
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