CVE-2020-5299

Vulnerability Description

In OctoberCMS (october/october composer package) versions from 1.0.319 and before 1.0.466, any users with the ability to modify any data that could eventually be exported as a CSV file from the `ImportExportController` could potentially introduce a CSV injection into the data to cause the generated CSV export file to be malicious. This requires attackers to achieve the following before a successful attack can be completed: 1. Have found a vulnerability in the victims spreadsheet software of choice. 2. Control data that would potentially be exported through the `ImportExportController` by a theoretical victim. 3. Convince the victim to export above data as a CSV and run it in vulnerable spreadsheet software while also bypassing any sanity checks by said software. Issue has been patched in Build 466 (v1.0.466).

CVSS Score

Affected Products

Related Weaknesses (CWE)

References

• http://packetstormsecurity.com/files/158730/October-CMS-Build-465-XSS-File-Read-Third Party AdvisoryVDB Entry
• http://seclists.org/fulldisclosure/2020/Aug/2Mailing ListThird Party Advisory
• https://github.com/octobercms/library/commit/c84bf03f506052c848f2fddc05f24be6314PatchThird Party Advisory
• https://github.com/octobercms/october/commit/802d8c8e09a2b342649393edb6d3ceb9588PatchThird Party Advisory
• https://github.com/octobercms/october/security/advisories/GHSA-4rhm-m2fp-hx7qPatchThird Party Advisory
• http://packetstormsecurity.com/files/158730/October-CMS-Build-465-XSS-File-Read-Third Party AdvisoryVDB Entry
• http://seclists.org/fulldisclosure/2020/Aug/2Mailing ListThird Party Advisory
• https://github.com/octobercms/library/commit/c84bf03f506052c848f2fddc05f24be6314PatchThird Party Advisory
• https://github.com/octobercms/october/commit/802d8c8e09a2b342649393edb6d3ceb9588PatchThird Party Advisory
• https://github.com/octobercms/october/security/advisories/GHSA-4rhm-m2fp-hx7qPatchThird Party Advisory