{"answers":{"affected":"It affects 1 product.","exploited":"Yes. Attackers have exploited CVE-2021-26829 in the wild since at least 28 Nov 2025.","fix":"No fix has been published for CVE-2021-26829 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 19 Dec 2025.","what":"CVE-2021-26829 is a medium-severity cross-site scripting vulnerability in n/a, published on 11 Jun 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2021-26829 and fix it if it is affected.\n\nWhat it is: CVE-2021-26829 is a medium-severity cross-site scripting vulnerability in n/a, published on 11 Jun 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.\nExploitation: Yes. Attackers have exploited CVE-2021-26829 in the wild since at least 28 Nov 2025.\n\nAffected product: n/a. 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-2021-26829/ (Markdown: https://insights.sbomify.com/CVE-2021-26829/index.md)","id":"CVE-2021-26829","markdown":"https://insights.sbomify.com/CVE-2021-26829/index.md","name":"CVE-2021-26829","record":{"aliases":["GHSA-6pvv-xrf9-29m6"],"analysis":{"component_type":"ics_ot","fix_type":"upgrade","impacts":["code_execution","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"SCADA system","requires_auth":"low_privilege","summary":"Attackers can inject malicious scripts into the system settings page, potentially compromising user sessions and executing code in the victim's browser.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"scadabr","vendor":"scadabr"}],"cvss":{"score":5.4,"severity":"medium","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:L/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":"OpenPLC ScadaBR through 0.9.1 on Linux and through 1.12.4 on Windows allows stored XSS via system_settings.shtm.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"exploited"},"has_fix":null,"headline":"OpenPLC ScadaBR Cross-site Scripting","id":"CVE-2021-26829","indexable":true,"kev":{"dateAdded":"2025-11-28","dueDate":"2025-12-19","knownRansomwareCampaignUse":"Unknown","product":"ScadaBR","requiredAction":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","vendorProject":"OpenPLC","vulnerabilityName":"OpenPLC ScadaBR Cross-site Scripting Vulnerability"},"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2021"},"n_packages":0,"n_references":2,"next":{"headline":"SQL Injection in tribalsystems/zenario","id":"CVE-2021-26830"},"packages":[],"prev":{"headline":"OpenPLC ScadaBR Unrestricted Upload of File with Dangerous Type","id":"CVE-2021-26828"},"products":["n/a"],"published":"2021-06-11","related":[{"cvss_score":8.8,"headline":"OpenPLC ScadaBR Unrestricted Upload of File with Dangerous Type","id":"CVE-2021-26828","kev_date_added":"2025-12-03","published":"2021-06-11"},{"cvss_score":9.9,"headline":"ScadaBR Authenticated Remote Code Execution","id":"CVE-2026-9645","kev_date_added":null,"published":"2026-05-28"},{"cvss_score":8.8,"headline":"Missing authentication for critical function in ScadaBR","id":"CVE-2026-8602","kev_date_added":null,"published":"2026-05-19"},{"cvss_score":8.7,"headline":"Improper neutralization of special elements used in an OS command ('OS command injection') in ScadaBR","id":"CVE-2026-8603","kev_date_added":null,"published":"2026-05-19"},{"cvss_score":8.6,"headline":"Cross-Site request forgery (CSRF) in ScadaBR","id":"CVE-2026-8604","kev_date_added":null,"published":"2026-05-19"},{"cvss_score":6.1,"headline":"ScadaBR Unauthenticated Reflected Cross-Site Scripting","id":"CVE-2026-9646","kev_date_added":null,"published":"2026-05-28"}],"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":"open","licence":"CC0 1.0","name":"CISA KEV"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"active","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-12-02","vendors":["n/a"]},"summary":"Attackers can inject malicious scripts into the system settings page, potentially compromising user sessions and executing code in the victim's browser.","url":"https://insights.sbomify.com/CVE-2021-26829/"}