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CVE Record

CVE-2020-13643: An issue was discovered in the SiteOrigin Page Builder plugin before 2.10.16 for WordPress.

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.

HighCVSS 8.8Not KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

This WordPress plugin flaw could let an attacker trick a logged-in administrator into making an unwanted live editor request. If successful, attacker-controlled JavaScript could run in the administrator's browser, creating a serious risk to site integrity and administrator sessions.

Executive priority

Prioritize remediation for any public WordPress site using the affected plugin, because compromise requires only administrator interaction and can affect confidentiality, integrity, and availability.

Technical view

CVE-2020-13643 affects SiteOrigin Page Builder before 2.10.16. The live editor lacked nonce verification, enabling cross-site request forgery against administrators. The live_editor_panels_data POST variable could carry JavaScript that executes in the victim administrator's browser.

Likely exposure

Exposure is limited to WordPress sites running SiteOrigin Page Builder versions earlier than 2.10.16, especially where administrators browse while authenticated.

Exploitation context

The CVE requires user interaction by an administrator. The provided sources and KEV flag do not show confirmed active exploitation.

Researcher notes

The source bundle identifies the vulnerable feature, missing nonce verification, affected version boundary, and JavaScript execution impact. It does not provide CWE mapping, detailed affected CPEs, or evidence of exploitation in the wild.

Mitigation direction

  • Update SiteOrigin Page Builder to version 2.10.16 or later.
  • Confirm the installed plugin version across all WordPress properties.
  • Review current vendor and WordPress plugin guidance for newer security updates.
  • Limit administrator sessions to trusted devices and browsing contexts.
  • Investigate unexpected admin-side JavaScript or unauthorized content changes.

Validation and detection

  • Inventory WordPress sites for the siteorigin-panels plugin.
  • Check plugin versions and flag anything below 2.10.16.
  • Review web and WordPress admin logs for unusual administrator actions.
  • Inspect affected pages or widgets for unexpected script content.
  • Confirm live editor requests now enforce nonce protection.
Prepared
Confidence
high
Sources
4

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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CVE-2020-13643 mapping review

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Vulnerability profileCVE Program record
Severity
High
CVSS
8.8 (3.0)
Known Exploited
No
Published

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

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
8.8CVSS 3.0HighCVSS:3.0/AC:L/AV:N/A:H/C:H/I:H/PR:N/S:U/UI:R2.85.9Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

8.8High
CVSS 3.0 vector shape for CVE-2020-13643Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.