What’s Vulnerable › Vulnerabilities

CVE-2019-11818

• Severity: medium (CVSS 6.1 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2019-05-08 · updated 2026-06-17
• Weakness: CWE-79

Description

Alkacon OpenCMS v10.5.4 and before is affected by stored cross site scripting (XSS) in the module New User (/opencms/system/workplace/admin/accounts/user_new.jsp). This allows an attacker to insert arbitrary JavaScript as user input (First Name or Last Name), which will be executed whenever the affected snippet is loaded.

Affected products

• Alkacon OpenCms: through 10.5.4

References

• https://github.com/alkacon/opencms-core/issues/635
• https://www.openwall.com/lists/oss-security/2019/04/30/3
• https://github.com/alkacon/opencms-core/issues/635
• https://www.openwall.com/lists/oss-security/2019/04/30/3

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