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5 vulnerabilities found for Backdrop by BackdropCMS
CVE-2026-111442 (GCVE-0-2026-111442)
Vulnerability from cvelistv5
Published
2026-10-16 03:09
Modified
2026-10-21 02:10
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
Summary
Backdrop CMS Core 1.35.x before 1.35.2 and 1.34.x before 1.34.6 does not sufficiently validate uploaded SVG images to ensure they lack potentially dangerous SVG tags. SVG images can contain clickable links or executable scripting. By uploading a crafted SVG, it is possible to execute scripting in the browser when an SVG image is viewed. This issue is mitigated by the attacker needing to be able to upload SVG images, and that Backdrop embeds all uploaded SVG images within <img> tags, which prevents script from executing. The SVG must be viewed directly by its URL in order to run any embedded scripting.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| BackdropCMS | Backdrop |
Version: 1.35.0 ≤ Version: 1.34.0 ≤ |
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CVE-2026-110907 (GCVE-0-2026-110907)
Vulnerability from cvelistv5
Published
2026-10-15 02:09
Modified
2026-10-19 18:42
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-669 - Incorrect Resource Transfer Between Spheres
Summary
Backdrop CMS Core 1.35.x before 1.35.2 and 1.34.x before 1.34.6 mishandles tokens. A token is a small placeholder string (like [node:title] or [user:name]) used to automatically insert dynamic data into text. A browser is provided for selecting tokens by type. The product doesn't sufficiently limit access to the types of tokens that are available in the token browser. The names of the individual tokens are adequately protected.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| BackdropCMS | Backdrop |
Version: 1.35.0 ≤ Version: 1.34.0 ≤ |
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CVE-2026-107914 (GCVE-0-2026-107914)
Vulnerability from cvelistv5
Published
2026-10-09 05:18
Modified
2026-10-14 01:42
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-459 - Incomplete Cleanup
Summary
Backdrop CMS 1.34 before 1.34.5 and 1.35 before 1.35.1 doesn't sufficiently protect configuration exports when delivering a compressed archive. This vulnerability is mitigated by the fact that an export must have been previously requested by someone with the "Synchronize, import, and export configuration" permission. NOTE: CVE-2026-107914 refers to the vulnerability in which config.admin.inc does not ensure that a file_unmanaged_delete operation occurs. Therefore, many archives could persist: config.tar.gz, config_0.tar.gz, config_1.tar.gz, etc. There is a separate config.module issue that could allow remote access by an anonymous user, but only for the one filename config.tar.gz.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| backdropcms | Backdrop |
Version: 1.34.0 ≤ Version: 1.35.0 ≤ |
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CVE-2025-25062 (GCVE-0-2025-25062)
Vulnerability from cvelistv5
Published
2025-02-03 00:00
Modified
2025-05-09 12:03
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
Summary
An XSS issue was discovered in Backdrop CMS 1.28.x before 1.28.5 and 1.29.x before 1.29.3. It doesn't sufficiently isolate long text content when the CKEditor 5 rich text editor is used. This allows a potential attacker to craft specialized HTML and JavaScript that may be executed when an administrator attempts to edit a piece of content. This vulnerability is mitigated by the fact that an attacker must have the ability to create long text content (such as through the node or comment forms) and an administrator must edit (not view) the content that contains the malicious content. This problem only exists when using the CKEditor 5 module.
References
| URL | Tags | |
|---|---|---|
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| backdropcms | backdrop |
Version: 1.28.0 ≤ Version: 1.29.0 ≤ |
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CVE-2025-25063 (GCVE-0-2025-25063)
Vulnerability from cvelistv5
Published
2025-02-03 00:00
Modified
2025-02-12 20:41
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
Summary
An XSS issue was discovered in Backdrop CMS 1.28.x before 1.28.5 and 1.29.x before 1.29.3. It does not sufficiently validate uploaded SVG images to ensure they do not contain potentially dangerous SVG tags. SVG images can contain clickable links and executable scripting, and using a crafted SVG, it is possible to execute scripting in the browser when an SVG image is viewed. This issue is mitigated by the attacker needing to be able to upload SVG images, and that Backdrop embeds all uploaded SVG images within <img> tags, which prevents scripting from executing. The SVG must be viewed directly by its URL in order to run any embedded scripting.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| backdropcms | backdrop |
Version: 1.28.0 ≤ Version: 1.29.0 ≤ |
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