CVE-2017-16956
CVE-2017-16956 is a medium-severity vulnerability in Symphony Project Symphony with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.
Key facts
- Severity: Medium (CVSS 3.x base score 6.1)
- CVSS v2: 4.3
- EPSS exploit prediction: 1% (50th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-79
- Affected product: Symphony Project Symphony
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is CVE-2017-16956?
- 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.
- How severe is CVE-2017-16956?
- CVE-2017-16956 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2017-16956 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2017-16956?
- CVE-2017-16956 affects Symphony Project Symphony. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2017-16956?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2017-16956 published?
- CVE-2017-16956 was published on 2017-11-27 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:symphony_project:symphony:2.2.0:*:*:*:*:*:*:*
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