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Search Results (12 CVEs found)
| CVE | Vendors | Products | Updated | CVSS v3.1 |
|---|---|---|---|---|
| CVE-2026-50571 | 1 W3c | 1 Websub | 2026-10-28 | 5.7 Medium |
| WebSub is a W3C recommendation produced by the Social Web Working Group. In recommendation REC-websub-20180123, the intent-verification protocol requires a subscriber to echo the `hub.challenge` value, also exposed as `hub_challenge` by some frameworks, but does not require safe response media typing or disabled MIME sniffing. An attacker can initiate a subscription to obtain a callback URL and redirect a victim browser to a crafted verification request containing HTML or JavaScript. Subscribers that return the challenge as `text/html` can execute the reflected content in the subscriber origin, using a victim's existing session to read private data or perform actions, exposing `localStorage` or `sessionStorage` and browser permissions granted to that origin. An alternative uses the verification response as an attacker-controlled same-origin script resource to bypass `script-src 'self'`; this can remain possible with `application/octet-stream` when MIME sniffing is allowed. Safe media typing and `X-Content-Type-Options: nosniff` are both needed to address the described scenarios. WebSub Rocks demonstrated reflection, but the advisory does not establish practical impact on that demonstration site. | ||||
| CVE-2008-5282 | 1 W3c | 1 Amaya Web Browser | 2026-04-23 | N/A |
| Multiple stack-based buffer overflows in W3C Amaya Web Browser 10.0.1 allow remote attackers to execute arbitrary code via (1) a link with a long HREF attribute, and (2) a DIV tag with a long id attribute. | ||||
| CVE-2008-6005 | 1 W3c | 1 Amaya Web Browser | 2026-04-23 | N/A |
| Multiple buffer overflows in the CheckUniqueName function in W3C Amaya Web Browser 10.0.1, and possibly other versions including 11.0.1, might allow remote attackers to execute arbitrary code via "duplicated" attribute value inputs. | ||||
| CVE-2002-1053 | 1 W3c | 1 Jigsaw | 2026-04-16 | N/A |
| Cross-site scripting (XSS) vulnerability in W3C Jigsaw Proxy Server before 2.2.1 allows remote attackers to execute arbitrary script via a URL that contains a reference to a nonexistent host followed by the script, which is included in the resulting error message. | ||||
| CVE-2004-2274 | 1 W3c | 1 Jigsaw | 2026-04-16 | N/A |
| Unknown vulnerability in Jigsaw before 2.2.4 has unknown impact and attack vectors, possibly related to the parsing of the URI. | ||||
| CVE-2005-3183 | 2 Redhat, W3c | 2 Enterprise Linux, Libwww | 2026-04-16 | N/A |
| The HTBoundary_put_block function in HTBound.c for W3C libwww (w3c-libwww) allows remote servers to cause a denial of service (segmentation fault) via a crafted multipart/byteranges MIME message that triggers an out-of-bounds read. | ||||
| CVE-2000-0079 | 1 W3c | 1 Cern Httpd | 2026-04-16 | N/A |
| The W3C CERN httpd HTTP server allows remote attackers to determine the real pathnames of some commands via a request for a nonexistent URL. | ||||
| CVE-2002-1052 | 1 W3c | 1 Jigsaw | 2026-04-16 | N/A |
| Jigsaw 2.2.1 on Windows systems allows remote attackers to use MS-DOS device names in HTTP requests to (1) cause a denial of service using the "con" device, or (2) obtain the physical path of the server using two requests to the "aux" device. | ||||
| CVE-2006-1900 | 1 W3c | 1 Amaya | 2026-04-16 | N/A |
| Multiple buffer overflows in World Wide Web Consortium (W3C) Amaya 9.4, and possibly other versions including 8.x before 8.8.5, allow remote attackers to execute arbitrary code via a long value in (1) the COMPACT attribute of the COLGROUP element, (2) the ROWS attribute of the TEXTAREA element, and (3) the COLOR attribute of the LEGEND element; and via other unspecified attack vectors consisting of "dozens of possible snippets." | ||||
| CVE-2002-1445 | 1 W3c | 1 Cern Httpd | 2026-04-16 | N/A |
| Cross-site scripting (XSS) vulnerability in CERN Proxy Server allows remote attackers to execute script as other users via a link to a non-existent page whose name contains the script, which is inserted into the resulting error page. | ||||
| CVE-2025-1781 | 2 W3, W3c | 2 Css Validator, Css Validator | 2025-08-01 | 6.5 Medium |
| There is a XXE in W3CSS Validator versions before cssval-20250226 that allows an attacker to use specially-crafted XML objects to coerce server-side request forgery (SSRF). This could be exploited to read arbitrary local files if an attacker has access to exception messages. | ||||
| CVE-2020-4070 | 1 W3c | 1 Css Validator | 2024-11-21 | 4.6 Medium |
| In CSS Validator less than or equal to commit 54d68a1, there is a cross-site scripting vulnerability in handling URIs. A user would have to click on a specifically crafted validator link to trigger it. This has been patched in commit e5c09a9. | ||||
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