panicsteve w2wiki Markdown index.php toHTML cross site scripting
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.
Summary
A vulnerability was found in panicsteve w2wiki. It has been rated as problematic. Affected by this issue is the function toHTML of the file index.php of the component Markdown Handler. The manipulation leads to cross site scripting. The attack may be launched remotely. The name of the patch is 8f1d0470b4ddb1c7699e3308e765c11ed29542b6. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-216476.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| panicsteve | w2wiki | all versions | — | No fix listed | CNA |
- w2wiki Vendorpanicsteve Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:w2wiki_project:w2wiki:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | W2wiki Project |
- cpe:2.3:a:w2wiki_project:w2wiki:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·W2wiki Project
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-4271
- 2026-10-03 Alias added: GHSA-q3hj-8gmm-3pv5
References
Sources
- CVE-2021-4271 · CVE Program
- CVE-2021-4271 · NVD
- FIRST EPSS
- GHSA-q3hj-8gmm-3pv5 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences