Description
svg-sanitizer from 0.5.3 before 1.1.0 contains a denial of service vulnerability in Sanitizer::sanitize() that repeatedly rescans the whole input while stripping PHP tags. Unauthenticated attackers can upload SVGs with many overlapping PHP tag openers and closers, forcing quadratic preg_replace passes that exhaust worker CPU for minutes.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| darylldoyle | svg-sanitizer | 0.5.3 – < 1.1.0 | 1.1.0 |