{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-12888 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-12888 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-12888 is a low-severity cross-site scripting vulnerability in Thinkst Applied Research Canarytokens, published on 22 Jun 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-12888 and fix it if it is affected.\n\nWhat it is: CVE-2026-12888 is a low-severity cross-site scripting vulnerability in Thinkst Applied Research Canarytokens, published on 22 Jun 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-12888 in the wild and no public exploit code.\n\nAffected product: Thinkst Applied Research Canarytokens. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-12888/ (Markdown: https://insights.sbomify.com/CVE-2026-12888/index.md)","id":"CVE-2026-12888","markdown":"https://insights.sbomify.com/CVE-2026-12888/index.md","name":"CVE-2026-12888","record":{"aliases":["GHSA-vcfc-7466-8q65"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Canarytokens notification","requires_auth":"none","summary":"Attackers can inject HTML into Google Chat notifications, enabling interface manipulation and potential phishing via inserted links.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"ThinkstAppliedResearch","cpe":[],"cvss":{"score":2,"severity":"low","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N/E:P/AU:N/RE:L/U:Green","version":"4.0"},"cwes":[{"id":"CWE-74","name":"Improper Neutralization of Special Elements in Output Used by a Downstream Component"}],"description":"An HTML injection vulnerability exists in the Google Chat webhook notification  sent by Thinkst Applied Research Canarytokens, enabling Interface Manipulation in Google Chat. An attacker can insert limited HTML content including links.\n\nThis issue affects Canarytokens: from Docker tag sha-4aef1db90 before sha-8ab4dccd, from Git commit 4aef1db90 before 8ab4dccd.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"HTML injection in the Canarytoken Google Chat notification","id":"CVE-2026-12888","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Information disclosure in Red Hat Enterprise Linux 10","id":"CVE-2026-12891"},"packages":[],"prev":{"headline":"In affected versions of Octopus Server, a user with permission to upload a malicious nuget package is able to deploy a script step so the sc","id":"CVE-2026-12887"},"products":["Canarytokens"],"published":"2026-06-22","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-06-22","vendors":["Thinkst Applied Research"]},"summary":"Attackers can inject HTML into Google Chat notifications, enabling interface manipulation and potential phishing via inserted links.","url":"https://insights.sbomify.com/CVE-2026-12888/"}