{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-73628", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-08-13T11:17:25.160Z", "datePublished": "2026-08-13T11:28:26.954Z", "dateUpdated": "2026-08-13T11:28:26.954Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-08-13T11:28:26.954Z"}, "datePublic": "2026-07-26T00:00:00.000Z", "title": "Serendipity 2.3.5 Reflected XSS via search clean-URL route", "descriptions": [{"lang": "en", "value": "Serendipity versions >= 2.3.5 and <= 2.6.0 contain a reflected cross-site scripting vulnerability in the search clean-URL route (/search/<term>). In include/functions_routing.inc.php serveSearch(), the sanitisation pipeline runs urldecode() after HTML-encoding, so a single URL-encoded HTML payload survives strip_tags() and htmlspecialchars() and is then decoded back into live HTML in the page. A crafted search link can execute arbitrary JavaScript in the victim's browser. Fixed in 2.6.1."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')", "cweId": "CWE-79", "type": "CWE"}]}], "affected": [{"vendor": "s9y", "product": "Serendipity", "defaultStatus": "affected", "versions": [{"version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "2.3.5"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:s9y:serendipity:2.5.0:-:*:*:*:*:*:*"}, {"vulnerable": true, "criteria": "cpe:2.3:a:s9y:serendipity:2.4.0:-:*:*:*:*:*:*"}, {"vulnerable": true, "criteria": "cpe:2.3:a:s9y:serendipity:2.6.0:beta1:*:*:*:*:*:*"}, {"vulnerable": true, "criteria": "cpe:2.3:a:s9y:serendipity:2.6.0:-:*:*:*:*:*:*"}, {"vulnerable": true, "criteria": "cpe:2.3:a:s9y:serendipity:2.4.0:beta1:*:*:*:*:*:*"}, {"vulnerable": true, "criteria": "cpe:2.3:a:s9y:serendipity:2.3.5:*:*:*:*:*:*:*"}]}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "LOW", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "LOW", "subIntegrityImpact": "LOW", "subAvailabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM"}}, {"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM"}}], "references": [{"url": "https://github.com/s9y/Serendipity/security/advisories/GHSA-6c2x-mjmq-vx4q", "tags": ["vendor-advisory"], "name": "GitHub Security Advisory (GHSA-6c2x-mjmq-vx4q)"}, {"name": "VulnCheck Advisory: Serendipity 2.3.5 Reflected XSS via search clean-URL route", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/serendipity-reflected-xss-via-search-clean-url-route"}], "credits": [{"lang": "en", "value": "hutsbotnet", "type": "reporter"}], "x_generator": {"engine": "vulncheck-endgame"}}}}

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