Cyber Resilience

CVE-2024-6497

SQLi in Seo Plugin By Squirrly Seo ≤ 12.3.20

Public PoCSQLiXSS
Published
20 July 2024
Modified
08 April 2026
Patch / advisory
CVSS Score v3.1 8.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.11 96th percentile
Risk Priority 79 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2024-6497 is a high-severity SQL Injection (CWE-89) vulnerability in Squirrly Seo Plugin By Squirrly Seo. Its CVSS base score is 8.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Browser Session Hijacking (T1185); ranked in the top 4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

The strongest mitigations our analysis identified map to SA-11 (Developer Testing and Evaluation) and SI-10 (Information Input Validation) — see the control section below for these in your framework.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

The SEO Plugin by Squirrly SEO for WordPress contains a stored cross-site scripting vulnerability in the url parameter that affects all versions through 12.3.19. The flaw stems from insufficient input sanitization and output escaping, allowing malicious script content to be persisted and later rendered in plugin-generated pages. CVE-2024-43286 is noted as a duplicate of the same issue.

Authenticated users with Contributor-level access or higher can supply crafted url values that store executable scripts. When any visitor loads an affected page the injected code runs in the victim's browser, enabling theft of session tokens, account takeover, or other actions within the WordPress site context. The reported CVSS 3.1 score is 8.8.

Public references point to a patched changeset (3121853) in the plugin repository and an advisory from Wordfence that recommend updating to a fixed release. Site administrators should apply the latest version of the Squirrly SEO plugin and verify that Contributor roles cannot create or edit content that bypasses the corrected escaping routines.

EPSS probability rose from lower values to a recorded peak of 0.2757 before receding to the current 0.2289, indicating measurable post-disclosure exploitation interest that warrants renewed monitoring.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

The SEO Plugin by Squirrly SEO plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘url’ parameter in all versions up to, and including, 12.3.19 due to insufficient input sanitization and output escaping. This makes it possible for…

more

authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. CVE-2024-43286 appears to be a duplicate of this issue.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1185 Browser Session Hijacking Collection
Adversaries may take advantage of security vulnerabilities and inherent functionality in browser software to change content, modify user-behaviors, and intercept information as part of various browser session hijacking techniques.
T1539 Steal Web Session Cookie Credential Access
An adversary may steal web application or service session cookies and use them to gain access to web applications or Internet services as an authenticated user without needing credentials.
T1659 Content Injection Initial Access
Adversaries may gain access and continuously communicate with victims by injecting malicious content into systems through online network traffic.
T1189 Drive-by Compromise Initial Access
Adversaries may gain access to a system through a user visiting a website over the normal course of browsing.
T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2023-26750Shared CWE-79, CWE-89
CVE-2022-47523Shared CWE-79, CWE-89
CVE-2023-23470Shared CWE-79, CWE-89
CVE-2023-43377Shared CWE-79, CWE-89
CVE-2023-5252Shared CWE-79, CWE-89
CVE-2023-28849Shared CWE-79, CWE-89
CVE-2023-2660Shared CWE-79, CWE-89
CVE-2023-41136Shared CWE-79
CVE-2023-2768Shared CWE-79
CVE-2023-38476Shared CWE-79

Affected Assets

squirrly
seo plugin by squirrly seo
≤ 12.3.20

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V1.1.2
  • V1.3.2
  • V6.2.5

Mitigating Controls (NIST 800-53 r5) AI

Developer testing and evaluation can discover SQLi flaws before deployment but does not stop their introduction.

Input validation directly stops untrusted data from reaching SQL query construction without neutralization.

Output filtering can catch or sanitize unneutralized script content before it is served to users.

Secure engineering principles require parameterized queries and input sanitization that structurally eliminate SQLi.

System monitoring can identify attempted SQLi exploitation via anomalous queries after the weakness exists.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices directly target injection flaws during coding and review so largely prevent CWE-89 introduction, yet the single broad outcome leaves residual risk from incomplete neutralization techniques or missed edge cases.

PR.AT-02 partial match
prevents

Training raises developer awareness of SQLi risks and can reduce introduction likelihood (partial) but removes none of the actual coding flaw's risk by itself since technical neutralization is still required.

PR.PS-02 partial match
prevents

Patching and EOL replacement can remediate known XSS instances in libraries or frameworks (partial) but do nothing to enforce input neutralization in application code (none).

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

finds

The same secure-coding and static-analysis activities surface missing neutralization of SQL metacharacters before the system is accepted.

prevents

Early warnings and shared best-practice information help organizations apply the latest remediation techniques against SQL-injection vulnerabilities.

prevents

Threat-intelligence feeds that surface new SQL-injection campaigns enable rapid updates to query-construction defenses and detection signatures before exploitation occurs.

prevents

Secure-coding rules and security testing phases mandate the use of parameterized queries or equivalent escaping, preventing the construction of dynamic SQL statements from untrusted input.

prevents

Language-specific secure coding rules, peer review and SAST together prevent the construction of SQL statements from untrusted data without proper parameterization or escaping.

References