CVE-2022-4721 json
Failure to Sanitize Special Elements into a Different Plane (Special Element Injection) in ikus060/rdiffweb
published 2022-12-23 3 y ago modified 2026-06-17 4 mo ago also GHSA-83pm-7v48-5jp4 , PYSEC-2022-43007 , EUVD-2022-0258
- cvss
- 6.6
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 44%
- public exploits
- 0
- none known
Summary
Failure to Sanitize Special Elements into a Different Plane (Special Element Injection) in GitHub repository ikus060/rdiffweb prior to 2.5.5.
Patch / fix
- pypi rdiffweb 2.5.5
- ikus060 ikus060/rdiffweb 2.5.5
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 19 mo ago
Exploit prediction
0.52% chance of exploitation in the next 30 days, higher than 44% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- huntr.dev https://huntr.dev/bounties/3c48ef5d-da4d-4ee4-aaca-af65e7273720 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 6.6 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H |
| NVD | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N |
| GitHub | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | rdiffweb | <2.5.5 |
2.5.5 |
Affected products
- ikus060 ikus060/rdiffweb
Classification
- Weakness
-
- CWE-75 Failure to Sanitize Special Elements into a Different Plane
References
-
github.com
/ikus060/rdiffweb/commit/6afaae56a29536f0118b3380d296c416aa6d078d
web, patch, third-party-advisory
-
huntr.dev
/bounties/3c48ef5d-da4d-4ee4-aaca-af65e7273720
web, exploit, patch, third-party-advisory, evidence
-
nvd.nist.gov
/vuln/detail/CVE-2022-4721
advisory
-
github.com
/ikus060/rdiffweb
package
-
github.com
/pypa/advisory-database/tree/main/vulns/rdiffweb/PYSEC-2022-43007.yaml
web
-
github.com
/advisories/GHSA-83pm-7v48-5jp4
advisory
Sources
- CVE List CVE-2022-4721
- GitHub Advisory GHSA-83pm-7v48-5jp4
- NVD CVE-2022-4721
- OSV PYSEC-2022-43007
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.