CVE-2026-47383
NocoDB: Stored Cross-Site Scripting via Row Comments
NocoDB is software for building databases as spreadsheets. Prior to 2026.05.1, an authenticated commenter could store HTML in row comments that executed as script when other users hovered over the comment in the expanded form view. The comment write paths persisted the raw comment body with no server-side sanitisation; the expanded-form sidebar then rendered the stored body and fed its data-tooltip attribute to Tippy with allowHTML: true. Even when the editor stripped script tags at write time, attribute-level payloads re-entered the DOM as live HTML on hover. This vulnerability is fixed in 2026.05.1.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- Passive
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
NocoDB: Stored Cross-Site Scripting via Row Comments
NocoDB is software for building databases as spreadsheets. Prior to 2026.05.1, an authenticated commenter could store HTML in row comments that executed as script when other users hovered over the comment in the expanded form view. The comment write paths persisted the raw comment body with no server-side sanitisation; the expanded-form sidebar then rendered the stored body and fed its data-tooltip attribute to Tippy with allowHTML: true. Even when the editor stripped script tags at write time, attribute-level payloads re-entered the DOM as live HTML on hover. This vulnerability is fixed in 2026.05.1.
- Record
CVE-2026-47383- CVSS 4.0
- 7.4 High
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N - Weakness
- CWE-79
- Updated
- 2026-11-02
EUVDEUVD-2026-38617
NocoDB is software for building databases as spreadsheets. Prior to 2026.05.1, an authenticated commenter could store HTML in row comments that executed as script when other users hovered over the comment in the expanded form view. The comment write paths persisted the raw comment body with no server-side sanitisation; the expanded-form sidebar then rendered the stored body and fed its data-tooltip attribute to Tippy with allowHTML: true. Even when the editor stripped script tags at write time, attribute-level payloads re-entered the DOM as live HTML on hover. This vulnerability is fixed in 2026.05.1.
- Record
EUVD-2026-38617- CVSS 4.0
- 7.4 High
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-jf3g-4gwg-4h66
NocoDB: Stored Cross-Site Scripting via Row Comments
Summary
An authenticated commenter could store HTML in row comments that executed as script when other users hovered over the comment in the expanded form view.
Details
The comment write paths persisted the raw comment body with no server-side sanitisation;
the expanded-form sidebar then rendered the stored body and fed its data-tooltip
attribute to Tippy with allowHTML: true. Even when the editor stripped script tags
at write time, attribute-level payloads re-entered the DOM as live HTML on hover.
Impact
Stored Cross-Site Scripting against any user who views the affected row. Script runs in
the NocoDB origin with the victim's session and can read the auth JWT from
localStorage. Authentication and comment permission are required.
Credit
This issue was reported by @DavidCarliez. It was independently reported by @Mouhebbenelwafi.
- Record
GHSA-jf3g-4gwg-4h66- CVSS 4.0
- 7.4 High
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N - Weakness
- CWE-79
- Updated
- 2026-11-02
NVD
NocoDB is software for building databases as spreadsheets. Prior to 2026.05.1, an authenticated commenter could store HTML in row comments that executed as script when other users hovered over the comment in the expanded form view. The comment write paths persisted the raw comment body with no server-side sanitisation; the expanded-form sidebar then rendered the stored body and fed its data-tooltip attribute to Tippy with allowHTML: true. Even when the editor stripped script tags at write time, attribute-level payloads re-entered the DOM as live HTML on hover. This vulnerability is fixed in 2026.05.1.
- Record
CVE-2026-47383- CVSS 4.0
- 7.4 High
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Weakness
- CWE-79
- Updated
- 2026-11-02
OSV
NocoDB: Stored Cross-Site Scripting via Row Comments
NocoDB is software for building databases as spreadsheets. Prior to 2026.05.1, an authenticated commenter could store HTML in row comments that executed as script when other users hovered over the comment in the expanded form view. The comment write paths persisted the raw comment body with no server-side sanitisation; the expanded-form sidebar then rendered the stored body and fed its data-tooltip attribute to Tippy with allowHTML: true. Even when the editor stripped script tags at write time, attribute-level payloads re-entered the DOM as live HTML on hover. This vulnerability is fixed in 2026.05.1.
- Record
CVE-2026-47383- CVSS 4.0
- 7.4 High
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N - Weakness
- CWE-79
- Updated
- 2026-11-04
OSVGHSA-jf3g-4gwg-4h66
NocoDB: Stored Cross-Site Scripting via Row Comments
Summary
An authenticated commenter could store HTML in row comments that executed as script when other users hovered over the comment in the expanded form view.
Details
The comment write paths persisted the raw comment body with no server-side sanitisation;
the expanded-form sidebar then rendered the stored body and fed its data-tooltip
attribute to Tippy with allowHTML: true. Even when the editor stripped script tags
at write time, attribute-level payloads re-entered the DOM as live HTML on hover.
Impact
Stored Cross-Site Scripting against any user who views the affected row. Script runs in
the NocoDB origin with the victim's session and can read the auth JWT from
localStorage. Authentication and comment permission are required.
Credit
This issue was reported by @DavidCarliez. It was independently reported by @Mouhebbenelwafi.
- Record
GHSA-jf3g-4gwg-4h66- CVSS 4.0
- 7.4 High
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N - Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
Affected packages
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | OSV | |
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-47383 is a high vulnerability (CVSS 7.4) in Nocodb, published June 5, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.40%, the 34th percentile. Fixed in nocodb 2026.05.1.