CVE-2026-110718: SSRF (CVSS 5.9)

Description

TurboDocx html-to-docx through 1.23.1 contains a server-side request forgery vulnerability that allows attackers supplying HTML to make the server fetch internal URLs via img src attributes. Attackers can reference loopback, private, or cloud metadata addresses that bypass the loose isValidUrl() check, and read responses embedded in the generated DOCX word/media folder.

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CVSS v3.1 Score

5.9

MEDIUM

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

EPSS — Exploit Prediction

0.0044

Probability of exploitation

0.39%

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-918 Server-Side Request Forgery (SSRF)

References

Other References

https://github.com/TurboDocx/html-to-docx https://github.com/TurboDocx/html-to-docx/blob/ff08e5687a2c87bcdc182a2e3e130c3493b9fb7e/src/utils/image.js#L286 https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/H1t1Bbpjfx https://www.vulncheck.com/advisories/turbodocx-html-to-docx-through-1.23.1-ssrf-via-img-src-remote-image-download

Frequently Asked Questions

What is CVE-2026-110718? +

TurboDocx html-to-docx through 1.23.1 contains a server-side request forgery vulnerability that allows attackers supplying HTML to make the server fetch internal URLs via img src attributes. Attackers can reference loopback, private, or cloud metadata addresses that bypass the loose isValidUrl() check, and read responses embedded in the generated DOCX word/media folder. It has a CVSS v3.1 base score of 5.9 (MEDIUM).

How severe is CVE-2026-110718? +

CVE-2026-110718 has a CVSS v3.1 score of 5.9 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0044, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-110718? +

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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