CVE-2017-16956
b3log Symphony (aka Sym) 2.2.0 allows an XSS attack by sending a private letter with a certain ...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2017-16956- CVSS 3.0
- 6.1 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2017-16956- Updated
- 2026-11-02
EUVDEUVD-2017-8125 No score
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.
- Record
EUVD-2017-8125- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-x6vj-q2p5-mvjj
b3log Symphony (aka Sym) 2.2.0 allows an XSS attack by sending a private letter with a certain ...
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.
- Record
GHSA-x6vj-q2p5-mvjj- CVSS 3.0
- 6.1 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2017-16956 is a medium vulnerability (CVSS 6.1) in Symphony Project Symphony, published November 27, 2017. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.74%, the 55th percentile. No source names a fixed version.