{"answers":{"affected":"2 open source packages ship an affected version, including dompdf/dompdf. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-23924 exists.","fix":"Upgrade dompdf/dompdf to 2.0.2 or later.","what":"CVE-2023-23924 is a critical unsafe deserialization vulnerability in dompdf, published on 31 Jan 2023. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-23924 and fix it if it is affected.\n\nWhat it is: CVE-2023-23924 is a critical unsafe deserialization vulnerability in dompdf, published on 31 Jan 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-23924 exists.\n\nAffected packages and fixed versions:\n- dompdf/dompdf (Packagist): affected all versions; fixed in 2.0.2\n- dompdf/dompdf (Packagist): affected all versions; fixed in 2.0.2\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-2023-23924/ (Markdown: https://insights.sbomify.com/CVE-2023-23924/index.md)","id":"CVE-2023-23924","markdown":"https://insights.sbomify.com/CVE-2023-23924/index.md","name":"CVE-2023-23924","record":{"aliases":["GHSA-3cw5-7cxw-v5qg"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution","data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"PHP PDF converter","requires_auth":"none","summary":"Attackers can bypass URI validation in Dompdf SVG parsing to trigger arbitrary deserialization, potentially leading to remote code execution or file deletion.","user_interaction":"not_required","vuln_class":"deserialization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"dompdf","vendor":"dompdf_project"}],"cvss":{"score":10,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:H","version":"3.1"},"cwes":[{"id":"CWE-863","name":"Incorrect Authorization"},{"id":"CWE-551","name":"Incorrect Behavior Order: Authorization Before Parsing and Canonicalization"}],"description":"Dompdf is an HTML to PDF converter. The URI validation on dompdf 2.0.1 can be bypassed on SVG parsing by passing `\u003cimage\u003e` tags with uppercase letters. This may lead to arbitrary object unserialize on PHP \u003c 8, through the `phar` URL wrapper. An attacker can exploit the vulnerability to call arbitrary URL with arbitrary protocols, if they can provide a SVG file to dompdf. In PHP versions before 8.0.0, it leads to arbitrary unserialize, that will lead to the very least to an arbitrary file deletion and even remote code execution, depending on classes that are available.","ecosystems":["Packagist"],"exploits":{"exploitdb":0,"first_seen":"2023-02-01","github_poc":1,"max_poc_stars":9,"metasploit":0,"nuclei":0,"refs":[{"date":"2023-02-01T18:21:23Z","kind":"github_poc","ref":"https://github.com/motikan2010/CVE-2023-23924","stars":9,"title":"CVE-2023-23924 (Dompdf - RCE) PoC"}],"tier":"weaponised"},"has_fix":true,"headline":"URI validation failure on SVG parsing in Dompdf","id":"CVE-2023-23924","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Packagist","product":null,"products":[],"type":"deserialization","year":"2023"},"n_packages":2,"n_references":3,"next":{"headline":"Switcher Client contains Regular Expression Denial of Service (ReDoS)","id":"CVE-2023-23925"},"packages":[{"ecosystem":"Packagist","fixed":["2.0.2"],"introduced":["0"],"last_affected":[],"package":"dompdf/dompdf","purl":null,"source":"GHSA-3cw5-7cxw-v5qg"},{"ecosystem":"Packagist","fixed":["2.0.2"],"introduced":["0"],"last_affected":[],"package":"dompdf/dompdf","purl":"pkg:composer/dompdf/dompdf","source":"GHSA-3cw5-7cxw-v5qg"}],"prev":{"headline":"Moodle: possible to set the preferred \"start page\" of other users","id":"CVE-2023-23923"},"products":["dompdf"],"published":"2023-01-31","related":[{"cvss_score":10,"headline":"URI validation failure on SVG parsing. Bypass of CVE-2023-23924","id":"CVE-2023-24813","kev_date_added":null,"published":"2023-02-07"},{"cvss_score":9.8,"headline":"PHAR Deserialization in dompdf/dompdf","id":"CVE-2021-3838","kev_date_added":null,"published":"2024-11-15"},{"cvss_score":9.8,"headline":"Improper Restriction of XML External Entity Reference in dompdf/dompdf","id":"CVE-2021-3902","kev_date_added":null,"published":"2024-11-15"},{"cvss_score":9.8,"headline":"Remote code injection in dompdf/dompdf","id":"CVE-2022-28368","kev_date_added":null,"published":"2022-04-03"},{"cvss_score":8.8,"headline":"DOMPDF Remote Code Execution","id":"CVE-2014-5013","kev_date_added":null,"published":"2020-01-10"},{"cvss_score":7.5,"headline":"Dompdf allows remote file inclusion because URI validation failure does not halt font registration","id":"CVE-2022-41343","kev_date_added":null,"published":"2022-09-25"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"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)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-03-10","vendors":["dompdf"]},"summary":"Attackers can bypass URI validation in Dompdf SVG parsing to trigger arbitrary deserialization, potentially leading to remote code execution or file deletion.","url":"https://insights.sbomify.com/CVE-2023-23924/"}