{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-22871 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-22871 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-22871 is a medium-severity cross-site scripting vulnerability in Revive-Adserver Revive Adserver, published on 21 Jan 2021. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2021-22871 and fix it if it is affected.\n\nWhat it is: CVE-2021-22871 is a medium-severity cross-site scripting vulnerability in Revive-Adserver Revive Adserver, published on 21 Jan 2021. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2021-22871 in the wild and no public exploit code.\n\nAffected product: Revive-Adserver Revive Adserver. 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-2021-22871/ (Markdown: https://insights.sbomify.com/CVE-2021-22871/index.md)","id":"CVE-2021-22871","markdown":"https://insights.sbomify.com/CVE-2021-22871/index.md","name":"CVE-2021-22871","record":{"aliases":["GHSA-m98h-4pjr-7pxh"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Ad server software","requires_auth":"high_privilege","summary":"A manager user can inject malicious scripts via website URL properties, leading to persistent XSS in the affiliate preview screen.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"hackerone","cpe":[{"product":"revive_adserver","vendor":"revive-adserver"}],"cvss":{"score":4.8,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"Revive Adserver before 5.1.0 permits any user with a manager account to store possibly malicious content in the URL website property, which is then displayed unsanitized in the affiliate-preview.php tag generation screen, leading to a persistent cross-site scripting (XSS) vulnerability.","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":"Cross-site scripting in https://github.com/revive-adserver/revive-adserver","id":"CVE-2021-22871","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"revive-adserver:revive_adserver","products":["revive-adserver:revive_adserver"],"type":"xss","year":"2021"},"n_packages":0,"n_references":6,"next":{"headline":"Cross-site scripting in https://github.com/revive-adserver/revive-adserver","id":"CVE-2021-22872"},"packages":[],"prev":{"headline":"Path traversal in GitHub Enterprise Server hosted Pages leads to unauthorized file read access","id":"CVE-2021-22870"},"products":["https://github.com/revive-adserver/revive-adserver"],"published":"2021-01-21","related":[{"cvss_score":9.8,"headline":"Security feature bypass in Revive Adserver All versions before 3.2.3","id":"CVE-2016-9124","kev_date_added":null,"published":"2017-03-28"},{"cvss_score":9.8,"headline":"Auth bypass in Revive Adserver All versions before 3.2.3","id":"CVE-2016-9125","kev_date_added":null,"published":"2017-03-28"},{"cvss_score":9.8,"headline":"Deserialization in n/a","id":"CVE-2017-5830","kev_date_added":null,"published":"2017-03-03"},{"cvss_score":9,"headline":"Other in Revive Adserver All versions before 3.2.5 and 4.0.0","id":"CVE-2016-9470","kev_date_added":null,"published":"2017-03-28"},{"cvss_score":8.8,"headline":"Code injection in Adserver","id":"CVE-2026-50741","kev_date_added":null,"published":"2026-06-26"},{"cvss_score":8.8,"headline":"Missing authorization in Revive Adserver","id":"CVE-2025-48986","kev_date_added":null,"published":"2025-11-20"},{"cvss_score":8.8,"headline":"SQL injection in Revive Adserver","id":"CVE-2025-52664","kev_date_added":null,"published":"2025-10-30"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-03","vendors":["n/a"]},"summary":"A manager user can inject malicious scripts via website URL properties, leading to persistent XSS in the affiliate preview screen.","url":"https://insights.sbomify.com/CVE-2021-22871/"}