CVE-2017-16881

Name: CVE-2017-16881
Creator: NVD / NIST
Published: 2017-11-18T13:29:00.207+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.82%

Last modified Jun 17, 2026

CVE-2017-16881 is a vulnerability of currently unknown severity. b3log Symphony (aka Sym) 2.2.0 does not properly address XSS in JSON objects, as demonstrated by a crafted userAvatarURL value to /settings/avatar, related to processor/AdminProcessor.java, processor/ArticleProcessor.java, processor/UserProcessor.java, service/ArticleQueryService.java, service/AvatarQueryService.java, and service/CommentQueryService.java.. EPSS estimates a 0.82% chance of exploitation in the next 30 days.

Description

b3log Symphony (aka Sym) 2.2.0 does not properly address XSS in JSON objects, as demonstrated by a crafted userAvatarURL value to /settings/avatar, related to processor/AdminProcessor.java, processor/ArticleProcessor.java, processor/UserProcessor.java, service/ArticleQueryService.java, service/AvatarQueryService.java, and service/CommentQueryService.java.

Metrics

EPSS Probability

0.82%

52.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Symphony Project	Symphony	2.2.0

References

https://github.com/b3log/symphony/issues/504Exploit, Third Party Advisory
https://github.com/b3log/symphony/issues/504Exploit, Third Party Advisory

Timeline

Published: Nov 18, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-16881?

How severe is CVE-2017-16881?

Severity scoring for CVE-2017-16881 is pending analysis. The EPSS model estimates a 0.82% probability of exploitation in the next 30 days.

How do I fix CVE-2017-16881?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-16881?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST