CVE-2021-25987

low-risk
Published 2021-11-30

Hexo versions 0.0.1 to 5.4.0 are vulnerable against stored XSS. The post “body” and “tags” don’t sanitize malicious javascript during web page generation. Local unprivileged attacker can inject arbitrary code.

Do I need to act?

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0.09% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.0/10 Medium
LOCAL / LOW complexity

Affected Products (1)

Hexo

Affected Vendors

Hexo

References (4)

Patch https://github.com/hexojs/hexo/commit/5170df2d3fa9c69e855c4b7c2b084ebfd92d5200
Third Party Advisory https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25987
Patch https://github.com/hexojs/hexo/commit/5170df2d3fa9c69e855c4b7c2b084ebfd92d5200
Third Party Advisory https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25987
22
/ 100
low-risk
Severity 17/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal