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Fencer Intel
high 8.8

CVE-2020-13643 json

An issue was discovered in the SiteOrigin Page Builder plugin before 2.10.16 for WordPress.

published 6y ago modified 4mo ago also EUVD-2020-5885

cvss
8.8
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 57%
public exploits
0
none known

Summary

An issue was discovered in the SiteOrigin Page Builder plugin before 2.10.16 for WordPress. The live editor feature did not do any nonce verification, allowing for requests to be forged on behalf of an administrator. The live_editor_panels_data $_POST variable allows for malicious JavaScript to be executed in the victim's browser.

Patch / fix

  • siteorigin page_builder 2.10.16

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Exploit prediction

0.81% chance of exploitation in the next 30 days, higher than 57% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • wordfence.com https://www.wordfence.com/blog/2020/05/vulnerabilities-patched-in-page-builder-by-siteorigin-affects-over-1-million-sites/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.0 8.8 CVSS:3.0/AC:L/AV:N/A:H/C:H/I:H/PR:N/S:U/UI:R
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CNA 3.0 8.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-352 Cross-Site Request Forgery
Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.