Cross-site scripting in backdropcms Link iframe formatter
Priority LOW 28CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
An XSS issue was discovered in the Link iframe formatter module before 1.x-1.1.1 for Backdrop CMS. It doesn't sufficiently sanitize input before displaying results to the screen. This vulnerability is mitigated by the fact that an attacker must have the ability to create content containing an iFrame field.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00236 14th percentileScored 2026-11-07
Fix Fixed Link iframe formatter (backdropcms): 1.x-1.1.1
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| backdropcms | Link iframe formatter | before 1.x-1.1.1 | 1.x-1.1.1 | Patch available | CNA |
- Link iframe formatter Vendorbackdropcms Affected before 1.x-1.1.1 Fixed in 1.x-1.1.1 Patch available CNA
Remediation
- Fix · CNA Link iframe formatter (backdropcms) Fixed in 1.x-1.1.1
Timeline
- 2026-10-02 Threatist record created from CVE-2025-27824
- 2026-10-03 Alias added: GHSA-xf37-jxxr-pmvg
References
More backdropcms vulnerabilities
- TI-2019-08480 jQuery before 3.4.0, as used in Drupal, Backdrop CMS, and other products, mishandles… CVSS 3.1MEDIUM 6.1
- TI-2025-39465 Host Header Injection vulnerability in Backdrop CMS 1.32.1 allows attackers to manipulate… CVSS 3.1MEDIUM 6.1
- TI-2023-14781 A stored Cross-site scripting (XSS) issue in Text Editors and Formats in Backdrop CMS… CVSS 3.1MEDIUM 4.8
- TI-2022-20387 Backdrop CMS version 1.23.0 was discovered to contain a stored cross-site scripting (XSS) vulnerability via 'Comment.' . CVSS 3.1MEDIUM 4.8
- TI-2022-20386 Backdrop CMS version 1.23.0 was discovered to contain a stored cross-site scripting (XSS)… CVSS 3.1MEDIUM 4.8
- TI-2022-20385 Backdrop CMS version 1.23.0 was discovered to contain a stored cross-site scripting (XSS)… CVSS 3.1MEDIUM 4.8
Sources
- CVE-2025-27824 · CVE Program
- CVE-2025-27824 · NVD
- FIRST EPSS
- GHSA-xf37-jxxr-pmvg · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences