CVE-2022-25849 json
Cross-site Scripting (XSS)
published 2022-10-26 4 y ago modified 2026-06-17 4 mo ago also GHSA-4r9g-w48q-8jwm , EUVD-2022-7018
- cvss
- 5.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 47%
- public exploits
- 0
- none known
Summary
The package joyqi/hyper-down from 0.0.0 are vulnerable to Cross-site Scripting (XSS) because the module of parse markdown does not filter the href attribute very well.
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 18 mo ago
Exploit prediction
0.57% chance of exploitation in the next 30 days, higher than 47% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- security.snyk.io https://security.snyk.io/vuln/SNYK-PHP-JOYQIHYPERDOWN-2953544 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N |
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| GitHub | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | joyqi/hyper-down | <=2.4.27 |
no fix listed |
Affected products
- n/a joyqi/hyper-down
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
security.snyk.io
/vuln/SNYK-PHP-JOYQIHYPERDOWN-2953544
web, exploit, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2022-25849
advisory
-
github.com
/SegmentFault/HyperDown
package
Sources
- CVE List CVE-2022-25849
- GitHub Advisory GHSA-4r9g-w48q-8jwm
- NVD CVE-2022-25849
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.