CVE-2021-24693
The Simple Download Monitor WordPress plugin before 3.9.5 does not escape the "File Thumbnail" post meta before outputting it in some pages, which could allow users with a role as low as Contributor to perform Stored Cross-Site Scripting attacks.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.28%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The Simple Download Monitor WordPress plugin before 3.9.5 does not escape the "File Thumbnail" post meta before outputting it in some pages, which could allow users with a role as low as Contributor to perform Stored Cross-Site Scripting attacks. Given the that XSS is triggered even when the Download is in a review state, contributor could make JavaScript code execute in a context of a reviewer such as admin and make them create a rogue admin account, or install a malicious plugin
- CVSS 3.1
- 9.0 CRITICALCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
- EPSS
- 1.28% probability · 68th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- tipsandtricks-hq/simple download monitor
- Source
- contact@wpscan.com
References
- https://wpscan.com/vulnerability/4bb559b7-8dde-4c90-a9a6-d8dcfbea53a7Exploit, Third Party Advisory
- https://wpscan.com/vulnerability/4bb559b7-8dde-4c90-a9a6-d8dcfbea53a7Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.