What’s Vulnerable › Vulnerabilities

CVE-2017-6540

• Severity: medium (CVSS 6.1 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2017-03-08 · updated 2026-06-17
• Weakness: CWE-79

Description

Multiple Cross-Site Scripting (XSS) issues were discovered in webpagetest 3.0. The vulnerabilities exist due to insufficient filtration of user-supplied data (configs) passed to the webpagetest-master/www/benchmarks/compare.php URL. An attacker could execute arbitrary HTML and script code in a browser in the context of the vulnerable website.

Affected products

• Webpagetest Project Webpagetest: 3.0

References

• http://www.securityfocus.com/bid/96935
• https://github.com/WPO-Foundation/webpagetest/issues/830
• http://www.securityfocus.com/bid/96935
• https://github.com/WPO-Foundation/webpagetest/issues/830

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