Medium severity · published Sep 13, 2021
CVE-2021-24508
Smash Balloon Social Post Feed < 2.19.2 - Unauthenticated Stored XSS
6.1
CVSS
1.3%
EPSS
No
On KEV
Description
The Smash Balloon Social Post Feed WordPress plugin before 2.19.2 does not sanitise or escape the feedID POST parameter in its feed_locator AJAX action (available to both authenticated and unauthenticated users) before outputting a truncated version of it in the admin dashboard, leading to an unauthenticated Stored Cross-Site Scripting issue which will be executed in the context of a logged in administrator.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)1.3% · higher than 71% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SB
Smash Balloon Social Post Feed ·
2.19.2 before 2.19.2 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-24508
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-24508
Exploit
https://wpscan.com/vulnerability/2b543740-d4b0-49b5-a021-454a3a72162f
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5.4
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Smash Balloon Social Post Feed < 4.0.1 - Subscriber+ Arbitrary Plugin Settings Update to Stored XSS