THREATPORT/VULNERABILITY/CVE-2021-39348
MEDIUM SEVERITY

CVE-2021-39348

Learnpress vulnerability

CVSS
5.5
EPSS
5.0%
EPSS pct
91th
Exploited
No known
The LearnPress WordPress plugin is vulnerable to Stored Cross-Site Scripting due to insufficient escaping on the $custom_profile parameter found in the ~/inc/admin/views/backend-user-profile.php file which allowed attackers with administrative user access to inject arbitrary web scripts, in versions up to and including 4.1.3.1. This affects multi-site installations where unfiltered_html is disabled for administrators, and sites where unfiltered_html is disabled. Please note that this is seperate from CVE-2021-24702.
Affected vendor
Thimpress
Affected product
Learnpress
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N
Weakness type (CWE)
Published
2021-10-21

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring high privileges, no user interaction. Successful exploitation leads to low impact to confidentiality, low impact to integrity.

Its EPSS score of 5.0% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 91% of all scored CVEs.

Check your external exposure to CVE-2021-39348

  • Confirm whether Thimpress Learnpress is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2021-39348.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2021-39348

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2021-39348 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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