CVE-2021-30185 json
Indico Tampering with links (e.g. password reset) in sent emails
published 2021-04-07 5 y ago modified 2026-06-17 4 mo ago also GHSA-wgpj-7c2j-vfjm , PYSEC-2021-18 , EUVD-2021-0101
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.0%
- EPSS 1.0% chance of exploitation in 30 days, percentile 64%
- public exploits
- 0
- none known
Summary
CERN Indico before 2.3.4 can use an attacker-supplied Host header in a password reset link.
Patch / fix
Exploit prediction
1.05% chance of exploitation in the next 30 days, higher than 64% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:P/A:N |
| GitHub | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | indico | <2.3.4 |
2.3.4 |
Classification
- Weakness
-
- CWE-640 Weak Password Recovery Mechanism for Forgotten Password
References
-
shorebreaksecurity.com
/blog/
third-party-advisory, article
-
github.com
/indico/indico/releases/tag/v2.3.4
web, release-notes, third-party-advisory
-
github.com
/indico/indico/security/advisories/GHSA-wgpj-7c2j-vfjm
web
-
nvd.nist.gov
/vuln/detail/CVE-2021-30185
advisory
-
github.com
/advisories/GHSA-wgpj-7c2j-vfjm
advisory
-
github.com
/pypa/advisory-database/tree/main/vulns/indico/PYSEC-2021-18.yaml
web
-
shorebreaksecurity.com
/blog
web
Sources
- CVE List CVE-2021-30185
- GitHub Advisory GHSA-wgpj-7c2j-vfjm
- NVD CVE-2021-30185
- OSV PYSEC-2021-18
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