YesWiki before 4.6.7 contains an algorithmic-complexity denial of service in the wakka.php formatter due to an O(n^2) markdown-link regex.
YesWiki before 4.6.7 contains an algorithmic-complexity denial of service in the wakka.php formatter due to an O(n^2) markdown-link regex. Unauthenticated attackers can submit a small crafted body of bracket characters to the page-edit preview endpoint to pin PHP-FPM workers and saturate the pool.
Read at NIST National Vulnerability Database (CVE API 2.0)
- Vendor
- PHP
- Product
- PHP
- CVSS
- 5.3
- Exposure class
- Web platform
Why it ranks 8 (Routine)
- CVSS 5.3 medium
- Product class: web platform
- Recency: items published within 24 hours gain 15, within 72 hours 6, within 7 days 2.