CVE-2026-64851 Grav Shortcode Core Plugin: Stored XSS in shortcode-core attribute handlers

Grav Shortcode Core Plugin allows for the development shortcode plugins that utilize the common format utilized by WordPress and BBCode. Prior to 6.2.2, Grav Shortcode Core passes shortcode syntax through Security::detectXss because it contains no literal less-than character, then...

CVE-2026-64851

In Grav Shortcode Core Plugin before 6.2.2, ColorShortcode.php and related attribute handlers concatenate attacker-controlled parameters into HTML without encoding, bypassing Security::detectXss() (which misses payloads without a literal

EUVD-2026-62548

Grav Shortcode Core Plugin allows for the development shortcode plugins that utilize the common format utilized by WordPress and BBCode. Prior to 6.2.2, Grav Shortcode Core passes shortcode syntax through Security::detectXss because it contains no literal less-than character, then...

CVE-2026-75834 Grav before 2.0.14 Stored XSS via Invalid UTF-8 Byte

Grav before 2.0.14 contains a stored cross-site scripting vulnerability in the Security::detectXss function system/src/Grav/Common/Security.php. All XSS detection patterns use the PCRE /u UTF-8 modifier, so a single invalid UTF-8 byte anywhere in page content causes pregmatch to return false for...

CVE-2026-75834 Grav before 2.0.14 Stored XSS via Invalid UTF-8 Byte

Grav before 2.0.14 contains a stored cross-site scripting vulnerability in the Security::detectXss function system/src/Grav/Common/Security.php. All XSS detection patterns use the PCRE /u UTF-8 modifier, so a single invalid UTF-8 byte anywhere in page content causes pregmatch to return false for...

CVE-2026-72832

Grav versions from 1.5.2 through 2.0.12 contain a stored cross-site scripting vulnerability in the Security::detectXss function system/src/Grav/Common/Security.php. The event-handler scan is anchored at ?, which cannot cross the first literal ; when a appears inside a quoted attribute value the...

CVE-2026-72832

Grav versions from 1.5.2 through 2.0.12 contain a stored cross-site scripting vulnerability in the Security::detectXss function system/src/Grav/Common/Security.php. The event-handler scan is anchored at ?, which cannot cross the first literal ; when a appears inside a quoted attribute value the...

CVE-2026-72832

Grav before 2.0.13 (versions 1.5.2–2.0.12) contains a stored XSS in Security::detectXss() (system/src/Grav/Common/Security.php). The event-handler detector uses a pattern anchored at “]*?, which fails when a > appears inside a quoted attribute value, allowing a payload such as ” onerror=alert(...