CVE-2026-28355

{"id": "CVE-2026-28355", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-28355", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-03-03T20:29:36.968008Z"}}], "cvssMetricV40": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 1.3, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "LOW", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "exploitMaturity": "UNREPORTED", "providerUrgency": "NOT_DEFINED", "userInteraction": "PASSIVE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "LOW", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "LOW", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "thinkst", "product": "canarytokens", "versions": [{"status": "affected", "version": "< sha-7ff0e12"}]}]}], "published": "2026-02-27T21:16:19.563", "references": [{"url": "https://github.com/thinkst/canarytokens/security/advisories/GHSA-6734-fqcj-x5h3", "source": "security-advisories@github.com"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-79"}]}], "descriptions": [{"lang": "en", "value": "Canarytokens help track activity and actions on a network. Versions prior to `sha-7ff0e12` have a Self Cross-Site Scripting vulnerability in the \"PWA\" Canarytoken, whereby the Canarytoken's creator can attack themselves or someone they share the link with. The creator of a PWA Canarytoken can insert Javascript into the title field of their PWA token. When the creator later browses the installation page for their own Canarytoken, the Javascript executes. This is a self-XSS. An attacker could create a Canarytoken with this self-XSS, and send the install link to a victim. When they click on it, the Javascript would execute. However, no sensitive information (ex. session information) will be disclosed to the malicious actor. This issue is now patched on Canarytokens.org. Users of self-hosted Canarytokens installations can update by pulling the latest Docker image, or any Docker image after sha-7ff0e12."}, {"lang": "es", "value": "Canarytokens ayudan a rastrear la actividad y las acciones en una red. Las versiones anteriores a 'sha-7ff0e12' tienen una vulnerabilidad de Self Cross-Site Scripting en el Canarytoken 'PWA', mediante la cual el creador del Canarytoken puede atacarse a s\u00ed mismo o a alguien con quien comparte el enlace. El creador de un Canarytoken PWA puede insertar Javascript en el campo de t\u00edtulo de su token PWA. Cuando el creador navega posteriormente a la p\u00e1gina de instalaci\u00f3n de su propio Canarytoken, el Javascript se ejecuta. Esto es un self-XSS. Un atacante podr\u00eda crear un Canarytoken con este self-XSS, y enviar el enlace de instalaci\u00f3n a una v\u00edctima. Cuando hacen clic en \u00e9l, el Javascript se ejecutar\u00eda. Sin embargo, no se divulgar\u00e1 informaci\u00f3n sensible (ej. informaci\u00f3n de sesi\u00f3n) al actor malicioso. Este problema ya est\u00e1 parcheado en Canarytokens.org. Los usuarios de instalaciones de Canarytokens autoalojadas pueden actualizar extrayendo la \u00faltima imagen de Docker, o cualquier imagen de Docker posterior a 'sha-7ff0e12'."}], "lastModified": "2026-06-17T10:28:28.313", "sourceIdentifier": "security-advisories@github.com"}