b3log Symphony (aka Sym) 2.2.0 allows an XSS attack by sending a private letter with a…
Priority LOW 29CWE-79Published · Updated
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 3.0 · NVD. Fix status from CNA. Impact type from CWE-79.
Summary
b3log Symphony (aka Sym) 2.2.0 allows an XSS attack by sending a private letter with a certain /article URI, and a second private letter with a modified title.
Why it matters now
EPSS 0.00745 55th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:symphony_project:symphony:2.2.0:*:*:*:*:*:*:* | 2.2.0 | Vulnerable | Symphony Project |
- cpe:2.3:a:symphony_project:symphony:2.2.0:*:*:*:*:*:*:* Versions 2.2.0 Vulnerable ·Symphony Project
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2017-16956
- 2026-10-03 Alias added: GHSA-x6vj-q2p5-mvjj
References
More Symphony Project Symphony vulnerabilities
- TI-2017-12426 b3log Symphony (aka Sym) 2.2.0 does not properly address XSS in JSON objects, as… CVSS 3.0MEDIUM 6.1
Sources
- CVE-2017-16956 · CVE Program
- CVE-2017-16956 · NVD
- FIRST EPSS
- GHSA-x6vj-q2p5-mvjj · GitHub Advisory Database · CC BY 4.0
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