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CVE-2020-13643

22
FAUCET Score

CVE-2020-13643 describes a critical vulnerability in the SiteOrigin Page Builder plugin for WordPress, affecting versions prior to 2.10.16. This flaw, a missing nonce verification in the live editor feature, allows unauthenticated attackers to forge requests on behalf of an administrator, leading to arbitrary JavaScript execution in the victim's browser. With a CVSS score of 8.8 (High), it presents a significant risk due to its low attack complexity and potential for complete compromise of confidentiality, integrity, and availability. While no public exploit intelligence (Metasploit, Nuclei, ExploitDB) or active exploitation has been observed, and community discussion is minimal, organizations using affected versions should prioritize patching.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.10.16CPE matchmatch criteria
cpe:2.3:a:siteorigin:page_builder:*:*:*:*:*:wordpress:*:*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.81%
Probability of exploitation in next 30 days
EPSS Percentile
53.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0081 is in the 55th percentile among its peer group of 14,852 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

wordpress.org / plugins/siteorigin-panels
Release NotesThird Party Advisory
wordfence.com / blog/2020/05/vulnerabilities-patched-in-page-builder-by-siteorigin-affects-over-1-million-sites
ExploitThird Party Advisory