CVE-2026-110907
HIGHDescription
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.
How to fix
No published remediation has been found for this vulnerability's affected products yet.
Mitigation guidance may be in the linked vendor advisories in the References section below.
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CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Exploit Intelligence
Low risk: more likely to be exploited than 27% of all known CVEs.
References
Related Vulnerabilities
Other CWE-669 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2026-31431 | Medium | 5.5 | 98% | KEV | Fix |
| CVE-2002-0055 | Medium | 5.0 | 38% | - | - |
| CVE-2026-25253 | High | 8.8 | 32% | - | Fix |
| CVE-2020-1048 | High | 7.8 | 17% | - | - |
| CVE-2021-22900 | High | 7.2 | 14% | KEV | - |
| CVE-2020-6862 | Medium | 5.3 | 6.3% | - | - |
Common questions
How do I fix CVE-2026-110907?
No published fix for CVE-2026-110907 has been found yet. Check the linked vendor advisories for guidance as it becomes available.
Is CVE-2026-110907 being actively exploited?
Not that we know of. CVE-2026-110907 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.34% is the estimated probability that it will be exploited in the next 30 days. That is higher than 27% of all scored CVEs.
How severe is CVE-2026-110907?
CVE-2026-110907 has a CVSS v3 base score of 7.5, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-10-19.