CVE-2020-37233Public exploitNetwork attack vector

Stored XSS via unsanitized HTML figure

Published May 16, 2026 · Updated May 16, 2026

Stored cross-site scripting in BuddyPress 6.2.0 allows remote authenticated users to execute script in privileged users' browsers. The wp:html block accepts a figure containing an iframe event handler and stores it without neutralizing the executable markup before page rendering. Moderator privileges are required to submit the crafted block, and execution occurs when an administrator or another privileged user previews or views the page, enabling session hijacking, phishing, redirects, or content manipulation.

CVSS severity5.1
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored cross-site scripting in BuddyPress 6.2.0 allows remote authenticated users to execute script in privileged users' browsers. The wp:html block accepts a figure containing an iframe event handler and stores it without neutralizing the executable markup before page rendering. Moderator privileges are required to submit the crafted block, and execution occurs when an administrator or another privileged user previews or views the page, enabling session hijacking, phishing, redirects, or content manipulation.

The record

CVE
CVE-2020-37233
Published
May 16, 2026
Updated
May 16, 2026
Vendor
BuddyPress
Product
BuddyPress
Classifications
CWE-79, T1539
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 16, 2026CVE publishedPublication date reported by the CVE source.
  2. May 16, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=6.2.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

BuddyPress · BuddyPressversion=6.2.0

Published CVSS scores

6.4VulnCheckCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
5.1VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1539Steal Web Session Cookie

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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