{"answers":{"affected":"It affects 13 products.","exploited":"There is no known exploitation of CVE-2018-18688 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2018-18688 yet. Limit exposure of the affected software until one is available.","what":"CVE-2018-18688 is a medium-severity vulnerability in Foxitsoftware Foxit Reader, published on 7 Jan 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2018-18688 and fix it if it is affected.\n\nWhat it is: CVE-2018-18688 is a medium-severity vulnerability in Foxitsoftware Foxit Reader, published on 7 Jan 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2018-18688 in the wild and no public exploit code.\n\nAffected product: Foxitsoftware Foxit Reader. 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-2018-18688/ (Markdown: https://insights.sbomify.com/CVE-2018-18688/index.md)","id":"CVE-2018-18688","markdown":"https://insights.sbomify.com/CVE-2018-18688/index.md","name":"CVE-2018-18688","record":{"aliases":["GHSA-q966-hp9v-pw89"],"analysis":{"component_type":"desktop_application","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"PDF reader software","requires_auth":"none","summary":"Attackers can bypass PDF signature validation by using incremental saving to add malicious content, affecting multiple PDF reader applications.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"master_pdf_editor","vendor":"code-industry"},{"product":"foxit_reader","vendor":"foxitsoftware"},{"product":"phantompdf","vendor":"foxitsoftware"},{"product":"nitro_pro","vendor":"gonitro"},{"product":"nitro_reader","vendor":"gonitro"},{"product":"pdf_editor_6","vendor":"iskysoft"},{"product":"pdfelement6","vendor":"iskysoft"},{"product":"libreoffice","vendor":"libreoffice"},{"product":"power_pdf_standard","vendor":"nuance"},{"product":"pdf_studio","vendor":"qoppa"},{"product":"pdf_studio_viewer_2018","vendor":"qoppa"},{"product":"perfect_pdf_10","vendor":"soft-xpansion"},{"product":"perfect_pdf_reader","vendor":"soft-xpansion"}],"cvss":{"score":5.3,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-347","name":"Improper Verification of Cryptographic Signature"}],"description":"The Portable Document Format (PDF) specification does not provide any information regarding the concrete procedure of how to validate signatures. Consequently, an Incremental Saving vulnerability exists in multiple products. When an attacker uses the Incremental Saving feature to add pages or annotations, Body Updates are displayed to the user without any action by the signature-validation logic. This affects Foxit Reader before 9.4 and PhantomPDF before 8.3.9 and 9.x before 9.4. It also affects LibreOffice, Master PDF Editor, Nitro Pro, Nitro Reader, Nuance Power PDF Standard, PDF Editor 6 Pro, PDFelement6 Pro, PDF Studio Viewer 2018, PDF Studio Pro, Perfect PDF 10 Premium, and Perfect PDF Reader.","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":"Security feature bypass in n/a","id":"CVE-2018-18688","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"foxitsoftware:foxit_reader","products":["foxitsoftware:foxit_reader","foxitsoftware:phantompdf","libreoffice:libreoffice"],"type":"security_feature_bypass","year":"2018"},"n_packages":0,"n_references":4,"next":{"headline":"Other in n/a","id":"CVE-2018-18689"},"packages":[],"prev":{"headline":"Cross-site scripting in n/a","id":"CVE-2018-18678"},"products":["n/a"],"published":"2021-01-07","related":[],"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":"2024-08-05","vendors":["n/a"]},"summary":"Attackers can bypass PDF signature validation by using incremental saving to add malicious content, affecting multiple PDF reader applications.","url":"https://insights.sbomify.com/CVE-2018-18688/"}