CVE-2020-35951
It allows users to delete arbitrary files such as wp-config.php file, which could effectively take a site offline and allow an attacker to reinstall with a WordPress instance under their control.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 76.3%, higher than 100% of all known CVEs. Patch or mitigate before the next change window.
Description
An issue was discovered in the Quiz and Survey Master plugin before 7.0.1 for WordPress. It allows users to delete arbitrary files such as wp-config.php file, which could effectively take a site offline and allow an attacker to reinstall with a WordPress instance under their control. This occurred via qsm_remove_file_fd_question, which allowed unauthenticated deletions (even though it was only intended for a person to delete their own quiz-answer files).
- CVSS 3.1
- 9.9 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:H
- EPSS
- 76.33% probability · 100th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-306
- Affected
- expresstech/quiz and survey master
- Source
- cve@mitre.org
References
- https://wpscan.com/vulnerability/10348Exploit, Third Party Advisory
- https://www.wordfence.com/blog/2020/08/critical-vulnerabilities-patched-in-quiz-and-survey-master-plugin/Exploit, Third Party Advisory
- https://wpscan.com/vulnerability/10348Exploit, Third Party Advisory
- https://www.wordfence.com/blog/2020/08/critical-vulnerabilities-patched-in-quiz-and-survey-master-plugin/Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.