What’s Vulnerable › Vulnerabilities

CVE-2018-20524

• Severity: medium (CVSS 6.1 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2018-12-27 · updated 2026-06-17
• Weakness: CWE-79

Description

The Chat Anywhere extension 2.4.0 for Chrome allows XSS via crafted use of <<a> in a message, because a danmuWrapper DIV element in chatbox-only\danmu.js is outside the scope of a Content Security Policy (CSP).

Affected products

• Urlchatbox Chat Anywhere: 2.4.0

References

• https://vul.su.ki/posts/Chat_Anywhere_2.4.0_XSS.md/
• https://vul.su.ki/posts/Chat_Anywhere_2.4.0_XSS.md/

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