CVE-2026-55481: Improper Neutralization of Input During Web Page Generation

Snipe-IT is an IT asset/license management system. Prior to 8.6.2, default.blade.php renders headercolor and related branding color settings inside a CSS style block with HTML escaping that is insufficient for the CSS context, allowing a superadmin to inject arbitrary CSS that affects authenticat...

GHSA-9PMC-P236-855H Ruby CSS Parser: SSRF and Local File Disclosure in `CssParser::Parser#read_remote_file`

Summary CssParser::Parserreadremotefile and therefore loaduri!, and the @import-following branch of addblock! issues HTTP/HTTPS requests against any host, port and URI it is handed, with no scheme allowlist, no host / IP filtering, and no protection against link-local, loopback or RFC‑1918...

Ruby CSS Parser: SSRF and Local File Disclosure in `CssParser::Parser#read_remote_file`

Summary CssParser::Parserreadremotefile and therefore loaduri!, and the @import-following branch of addblock! issues HTTP/HTTPS requests against any host, port and URI it is handed, with no scheme allowlist, no host / IP filtering, and no protection against link-local, loopback or RFC‑1918...

Soup Sieve: Regular Expression Denial of Service (ReDoS) via Selector Parser

Summary The CSS selector parser in soupsieve the CSS selector engine for Beautiful Soup 4 contains a regular expression vulnerable to catastrophic backtracking. When processing an attribute selector with an unterminated quoted value, the VALUE regex pattern in cssparser.py enters exponential...

GHSA-2WC2-FM75-P42X Soup Sieve has Memory Exhaustion via Large Comma-Separated Selector Lists

Summary The CSS selector parser in soupsieve the CSS selector engine for Beautiful Soup 4 allocates unbounded memory when compiling large comma-separated selector lists. An attacker who can supply a crafted CSS selector string to soupsieve.compile or Beautiful Soup's .select / .selectone can caus...

[SECURITY] Fedora 43 Update: perl-CSS-Minifier-XS-0.15-1.fc43

'CSS::Minifier::XS' is a CSS "minifier". It's designed to remove unnecessary white-space and comments from CSS files, while also not breaking the CSS. 'CSS::Minifier::XS' is similar in function to 'CSS::Minifier', but is substantially faster as it's written in XS and not just pure Perl...

[SECURITY] Fedora 44 Update: perl-CSS-Minifier-XS-0.15-1.fc44

'CSS::Minifier::XS' is a CSS "minifier". It's designed to remove unnecessary white-space and comments from CSS files, while also not breaking the CSS. 'CSS::Minifier::XS' is similar in function to 'CSS::Minifier', but is substantially faster as it's written in XS and not just pure Perl...

PT-2026-56840

Name of the Vulnerable Software and Affected Versions soupsieve affected versions not specified Description The CSS selector parser in soupsieve contains a regular expression vulnerable to catastrophic backtracking, which occurs when the regex engine takes an exponential amount of time to process...

Fedora 43 : perl-CSS-Minifier-XS (2026-abc468979d)

The remote Fedora 43 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-abc468979d advisory. This package contains the Perl module CSS::Minifier::XS. Versions of the module before 0.14 have a memory leak when the entire document is minified away...

PT-2026-56853

Name of the Vulnerable Software and Affected Versions css parser versions prior to 3.0.0 Description An issue exists in the CssParser::Parserread remote file function and related code paths, such as Parserload uri! and Parseradd block!, where the software automatically follows @import URLs withou...

PT-2026-56839

Name of the Vulnerable Software and Affected Versions soupsieve versions prior to 2.8.4 Description The CSS selector parser in soupsieve allocates unbounded memory when compiling large comma-separated selector lists. An attacker can provide a crafted selector string to the soupsieve.compile...

Cross-site Scripting (XSS)

Overview org.webjars.npm:hono is an Ultrafast web framework for the Edges Affected versions of this package are vulnerable to Cross-site Scripting XSS via the cx class-name handling in src/helper/css/index.ts. An attacker can inject arbitrary HTML into rendered JSX by supplying a malicious class...

CVE-2026-59895

Hono is a Web application framework that provides support for any JavaScript runtime. From 4.0.0 before 4.12.27, cx in hono/css composes class names from plain strings but marks the result as already escaped without HTML-escaping the input, allowing untrusted className values used in a JSX class...

CVE-2026-59895

Hono is a Web application framework that provides support for any JavaScript runtime. From 4.0.0 before 4.12.27, cx in hono/css composes class names from plain strings but marks the result as already escaped without HTML-escaping the input, allowing untrusted className values used in a JSX class...

GHSA-4WJ4-79RR-PVFF Duplicate Advisory: Grav: Stored CSS injection via Markdown image resize() bypasses prior media style sanitizers in Grav

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-ffmg-hfvg-jhg9. This link is maintained to preserve external references. Original Description Grav before 2.0.0 affected through 2.0.0-rc.9 and the 2.0 branch contains a stored CSS injection vulnerability in the...

Duplicate Advisory: Grav: Stored CSS injection via Markdown image resize() bypasses prior media style sanitizers in Grav

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-ffmg-hfvg-jhg9. This link is maintained to preserve external references. Original Description Grav before 2.0.0 affected through 2.0.0-rc.9 and the 2.0 branch contains a stored CSS injection vulnerability in the...

CVE-2026-58657 Grav - Stored CSS Injection via Markdown Image resize() Action

Grav before 2.0.0 affected through 2.0.0-rc.9 and the 2.0 branch contains a stored CSS injection vulnerability in the Markdown image resize media action. Prior media hardening rejects direct ?style= payloads and unsafe attribute fallbacks, but the resize action in Excerpts::processMediaActions...

CVE-2026-58657

Grav before 2.0.0 affected through 2.0.0-rc.9 and the 2.0 branch contains a stored CSS injection vulnerability in the Markdown image resize media action. Prior media hardening rejects direct ?style= payloads and unsafe attribute fallbacks, but the resize action in Excerpts::processMediaActions...

CVE-2026-58657 Grav - Stored CSS Injection via Markdown Image resize() Action

Grav before 2.0.0 affected through 2.0.0-rc.9 and the 2.0 branch contains a stored CSS injection vulnerability in the Markdown image resize media action. Prior media hardening rejects direct ?style= payloads and unsafe attribute fallbacks, but the resize action in Excerpts::processMediaActions...

CVE-2026-58657 Grav - Stored CSS Injection via Markdown Image resize() Action

Grav before 2.0.0 affected through 2.0.0-rc.9 and the 2.0 branch contains a stored CSS injection vulnerability in the Markdown image resize media action. Prior media hardening rejects direct ?style= payloads and unsafe attribute fallbacks, but the resize action in Excerpts::processMediaActions...