CVE-2026-1771: Input Validation Flaw (CVSS 7.2)

Description

The MapSVG plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the SVGFile constructor in all versions up to, and including, 8.14.0 This is due to an incorrect conditional check that prevents file validation from taking place. This makes it possible for authenticated attackers, with Administrator-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible.

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CVSS v3.1 Score

7.2

HIGH

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0059

Probability of exploitation

0.44%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-20 Improper Input Validation

References

Other References

https://plugins.trac.wordpress.org/browser/mapsvg-lite-interactive-vector-maps/tags/8.9.1/php/Domain/File/FilesRepository.php#L166 https://plugins.trac.wordpress.org/browser/mapsvg-lite-interactive-vector-maps/tags/8.9.1/php/Domain/SVGFile/SVGFile.php#L24 https://plugins.trac.wordpress.org/browser/mapsvg-lite-interactive-vector-maps/tags/8.9.1/php/Router.php#L641 https://plugins.trac.wordpress.org/browser/mapsvg-lite-interactive-vector-maps/trunk/php/Domain/SVGFile/SVGFile.php#L24 https://plugins.trac.wordpress.org/changeset/3608308/mapsvg-lite-interactive-vector-maps/trunk/php/Domain/SVGFile/SVGFile.php https://plugins.trac.wordpress.org/changeset?old_path=%2Fmapsvg-lite-interactive-vector-maps/tags/8.14.0&new_path=%2Fmapsvg-lite-interactive-vector-maps/tags/8.14.1 https://www.wordfence.com/threat-intel/vulnerabilities/id/c7f098b9-eca3-41c7-9c74-0f4b3f75c915?source=cve

Frequently Asked Questions

What is CVE-2026-1771? +

The MapSVG plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the SVGFile constructor in all versions up to, and including, 8.14.0 This is due to an incorrect conditional check that prevents file validation from taking place. This makes it possible for authenticated attackers, with Administrator-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible. It has a CVSS v3.1 base score of 7.2 (HIGH).

How severe is CVE-2026-1771? +

CVE-2026-1771 has a CVSS v3.1 score of 7.2 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0059, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-1771? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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