CVE-2021-39320

Summary

The underConstruction plugin <= 1.18 for WordPress echoes out the raw value of $GLOBALS['PHP_SELF'] in the ucOptions.php file. On certain configurations including Apache+modPHP, this makes it possible to use it to perform a reflected Cross-Site Scripting attack by injecting malicious code in the request path.

Affected Software

Weaknesses

• CWE-79: CWE-79 Cross-site Scripting (XSS)

ADP Enrichment

CVE Program Container

Additional References

• https://wpscan.com/vulnerability/49ae1df0-d6d2-4cbb-9a9d-bf3599429875
• https://www.wordfence.com/vulnerability-advisories/#CVE-2021-39320

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: partial

References

• https://wpscan.com/vulnerability/49ae1df0-d6d2-4cbb-9a9d-bf3599429875
• https://www.wordfence.com/vulnerability-advisories/#CVE-2021-39320

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