CVE-2026-75626Public exploitNetwork attack vector

Stored XSS via unescaped correlation titles

Published Aug 18, 2026 · Updated Aug 19, 2026

Stored XSS in correlation handling in SpiderFoot 4.0 and earlier allows attackers to execute script in an operator browser via crafted scan data. The correlation engine's build_correlation_title() function substitutes raw event values into rule headlines, scancorrelations() returns the title unchanged, and scaninfo.tmpl concatenates that value into an HTML string passed to jQuery .append(). Reachability requires control of data that SpiderFoot scans, such as a server banner, WHOIS field, bucket name, or document metadata; when an operator opens the Correlations tab, attacker JavaScript runs in that session and can read plaintext API keys from Settings and drive the UI.

CVSS severity9.3
Critical
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in correlation handling in SpiderFoot 4.0 and earlier allows attackers to execute script in an operator browser via crafted scan data. The correlation engine's build_correlation_title() function substitutes raw event values into rule headlines, scancorrelations() returns the title unchanged, and scaninfo.tmpl concatenates that value into an HTML string passed to jQuery .append(). Reachability requires control of data that SpiderFoot scans, such as a server banner, WHOIS field, bucket name, or document metadata; when an operator opens the Correlations tab, attacker JavaScript runs in that session and can read plaintext API keys from Settings and drive the UI.

The record

CVE
CVE-2026-75626
Published
Aug 18, 2026
Updated
Aug 19, 2026
Vendor
Steve Micallef
Product
SpiderFoot
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 19, 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=0 <=4.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Steve Micallef · SpiderFootversion=0 <=4.0

Published CVSS scores

9.3VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N
9.3VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007JavaScript

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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