Medium severity6.1NVD Advisory· Published Oct 4, 2021· Updated Jun 17, 2026

CVE-2020-21495

Description

A cross-site scripting (XSS) vulnerability in the component /admin/?setting-base.htm of Xiuno BBS 4.0.4 allows attackers to execute arbitrary web scripts or HTML via the sitename parameter.

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LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Xiuno/Xiunobbs
cpe:2.3:a:xiuno:xiunobbs:4.0.4:*:*:*:*:*:*:*
Xiuno/BBScpe-rescue2 versions
(expand)+ 1 more
- (no CPE)
- (no CPE)range: =4.0.4

Patches

Vulnerability mechanics

References

github.com/wanghaiwei/xiuno-docker/issues/5nvdExploitIssue TrackingThird Party Advisory
gitee.com/xiuno/xiunobbs/issues/I16BI3nvdIssue TrackingThird Party Advisory

News mentions

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cvss	0.397
epss	0.001
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000