THREATPORT/VULNERABILITY/CVE-2020-8658
HIGH SEVERITY

CVE-2020-8658

Htaccess vulnerability

CVSS
8.8
EPSS
9.9%
EPSS pct
95th
Exploited
No known
The BestWebSoft Htaccess plugin through 1.8.1 for WordPress allows wp-admin/admin.php?page=htaccess.php&action=htaccess_editor CSRF. The flag htccss_nonce_name passes the nonce to WordPress but the plugin does not validate it correctly, resulting in a wrong implementation of anti-CSRF protection. In this way, an attacker is able to direct the victim to a malicious web page that modifies the .htaccess file, and takes control of the website.
Affected vendor
Bestwebsoft
Affected product
Htaccess
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness type (CWE)
  • CWE-352 — Cross-Site Request Forgery (CSRF)
Published
2020-02-06

Risk analysis

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

Its EPSS score of 9.9% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 95% of all scored CVEs.

Check your external exposure to CVE-2020-8658

  • Confirm whether Bestwebsoft Htaccess is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2020-8658.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2020-8658

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2020-8658 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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