CVE-2026-65842
Plate: SSRF with response disclosure in DOCX image embedding
Plate is a rich-text editor with AI and shadcn/ui. Prior to 53.3.2, @platejs/docx-io fetches remote image URLs while converting attacker-controlled HTML through htmlToDocxBlob in a server-side or privileged environment. The converter can make requests to internal network resources and include the fetched image bytes in the generated DOCX, allowing server-side request forgery with response disclosure. Applications can also incur resource consumption from attacker-selected remote responses. This issue is fixed in version 53.3.2.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
8.2
Plate: SSRF with response disclosure in DOCX image embedding
Plate is a rich-text editor with AI and shadcn/ui. Prior to 53.3.2, @platejs/docx-io fetches remote image URLs while converting attacker-controlled HTML through htmlToDocxBlob in a server-side or privileged environment. The converter can make requests to internal network resources and include the fetched image bytes in the generated DOCX, allowing server-side request forgery with response disclosure. Applications can also incur resource consumption from attacker-selected remote responses. This issue is fixed in version 53.3.2.
- Record
CVE-2026-65842- CVSS 3.1
- 8.2 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L - Weakness
- CWE-918
- Updated
- 2026-11-02
EUVDEUVD-2026-63471
8.2
Plate is a rich-text editor with AI and shadcn/ui. Prior to 53.3.2, @platejs/docx-io fetches remote image URLs while converting attacker-controlled HTML through htmlToDocxBlob in a server-side or privileged environment. The converter can make requests to internal network resources and include the fetched image bytes in the generated DOCX, allowing server-side request forgery with response disclosure. Applications can also incur resource consumption from attacker-selected remote responses. This issue is fixed in version 53.3.2.
- Record
EUVD-2026-63471- CVSS 3.1
- 8.2 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-4q39-2jhr-7qx8
8.2
Plate: SSRF with response disclosure in DOCX image embedding
Summary
@platejs/docx-io can fetch remote image URLs while converting HTML to DOCX. When an application converts attacker-controlled HTML in a server-side or privileged environment, this can cause the application environment to make unintended outbound requests and include fetched image data in the generated DOCX.
Impact
Applications are affected when they use @platejs/docx-io to convert untrusted HTML that may contain remote image references, especially in server-side conversion workflows or environments with access to internal network resources.
Affected package:
@platejs/docx-ioversions< 53.3.2
Patched versions
Upgrade to @platejs/docx-io version 53.3.2 or later.
Workarounds
If you cannot upgrade immediately, do not pass untrusted HTML with remote image URLs to DOCX export. Sanitize untrusted HTML to remove remote image references, convert trusted images to data URIs before conversion, or run conversion in an environment with restricted outbound network access.
Credits
Thanks to EQSTLab for reporting this issue.
- Record
GHSA-4q39-2jhr-7qx8- CVSS 3.1
- 8.2 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L - Weakness
- CWE-918
- Updated
- 2026-11-02
NVD
8.2
Plate is a rich-text editor with AI and shadcn/ui. Prior to 53.3.2, @platejs/docx-io fetches remote image URLs while converting attacker-controlled HTML through htmlToDocxBlob in a server-side or privileged environment. The converter can make requests to internal network resources and include the fetched image bytes in the generated DOCX, allowing server-side request forgery with response disclosure. Applications can also incur resource consumption from attacker-selected remote responses. This issue is fixed in version 53.3.2.
- Record
CVE-2026-65842- CVSS 3.1
- 8.2 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L - Weakness
- CWE-918
- Updated
- 2026-11-02
OSV
8.2
Plate: SSRF with response disclosure in DOCX image embedding
Plate is a rich-text editor with AI and shadcn/ui. Prior to 53.3.2, @platejs/docx-io fetches remote image URLs while converting attacker-controlled HTML through htmlToDocxBlob in a server-side or privileged environment. The converter can make requests to internal network resources and include the fetched image bytes in the generated DOCX, allowing server-side request forgery with response disclosure. Applications can also incur resource consumption from attacker-selected remote responses. This issue is fixed in version 53.3.2.
- Record
CVE-2026-65842- CVSS 3.1
- 8.2 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L - Weakness
- CWE-918
- Updated
- 2026-11-02
OSVGHSA-4q39-2jhr-7qx8
8.2
Plate: SSRF with response disclosure in DOCX image embedding
Summary
@platejs/docx-io can fetch remote image URLs while converting HTML to DOCX. When an application converts attacker-controlled HTML in a server-side or privileged environment, this can cause the application environment to make unintended outbound requests and include fetched image data in the generated DOCX.
Impact
Applications are affected when they use @platejs/docx-io to convert untrusted HTML that may contain remote image references, especially in server-side conversion workflows or environments with access to internal network resources.
Affected package:
@platejs/docx-ioversions< 53.3.2
Patched versions
Upgrade to @platejs/docx-io version 53.3.2 or later.
Workarounds
If you cannot upgrade immediately, do not pass untrusted HTML with remote image URLs to DOCX export. Sanitize untrusted HTML to remove remote image references, convert trusted images to data URIs before conversion, or run conversion in an environment with restricted outbound network access.
Credits
Thanks to EQSTLab for reporting this issue.
- Record
GHSA-4q39-2jhr-7qx8- CVSS 3.1
- 8.2 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L - Weakness
- CWE-918
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
@platejs/docx-ionpm |
before 53.3.2 | 53.3.2 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-65842 is a high vulnerability (CVSS 8.2) in Udecode Plate, published August 20, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.52%, the 44th percentile. Fixed in @platejs/docx-io 53.3.2.
References
github.com/udecode/plate/security/advisories/GHSA-4q39-2jhr-7qx8
github.com/udecode/plate/pull/5053
github.com/udecode/plate/commit/21aa59926f4bbd421027354823cca09c6700ed73
github.com/udecode/plate/releases/tag/v53.3.2
nvd.nist.gov/vuln/detail/CVE-2026-65842
github.com/advisories/GHSA-4q39-2jhr-7qx8
github.com/CVEProject/cvelistV5/tree/main/cves/2026/65xxx/CVE-2026-65842.json
github.com/udecode/plate