{"id":64223,"date":"2025-06-02T22:31:36","date_gmt":"2025-06-02T19:01:36","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2025-48995-signxml-timing-attack-hmac-leak\/"},"modified":"2025-06-02T22:31:36","modified_gmt":"2025-06-02T19:01:36","slug":"cve-2025-48995-signxml-timing-attack-hmac-leak","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2025-48995-signxml-timing-attack-hmac-leak\/","title":{"rendered":"CVE-2025-48995 &#8211; SignXML Timing Attack HMAC Leak"},"content":{"rendered":"<p><strong>CVE ID : <\/strong>CVE-2025-48995<br \/>\n<br \/>\n<strong>Published : <\/strong> June 2, 2025, 5:15 p.m. | 1\u00a0hour, 10\u00a0minutes ago<br \/>\n<br \/>\n<strong>Description : <\/strong>SignXML is an implementation of the W3C XML Signature standard in Python. When verifying signatures with X509 certificate validation turned off and HMAC shared secret set (`signxml.XMLVerifier.verify(require_x509=False, hmac_key=&#8230;`), versions of SignXML prior to 4.0.4 are vulnerable to a potential timing attack. The verifier may leak information about the correct HMAC when comparing it with the user supplied hash, allowing users to reconstruct the correct HMAC for any data.<br \/>\n<br \/>\n<strong>Severity:<\/strong> 0.0 | NA<br \/>\n<br \/>\nVisit the link for more details, such as CVSS details, affected products, timeline, and more&#8230;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>CVE ID : CVE-2025-48995 Published : June 2, 2025, 5:15 p.m. | 1\u00a0hour, 10\u00a0minutes ago Description : SignXML is an implementation of the W3C XML Signature standard in Python. When verifying signatures with X509 certificate validation turned off and HMAC shared secret set (`signxml.XMLVerifier.verify(require_x509=False, hmac_key=&#8230;`), versions of SignXML prior to 4.0.4 are vulnerable to a &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-64223","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/64223","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/comments?post=64223"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/64223\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=64223"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=64223"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=64223"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}