CVE-2018-14840
uploads/.htaccess in Subrion CMS 4.2.1 allows XSS because it does not block .html file uploads (but does block, for example, .htm file uploads).
Does this matter?
A public exploit is published in Exploit-DB, so the technical barrier is gone even though the severity is medium and EPSS is 3.7%. Treat it as high on anything reachable from the internet.
Description
uploads/.htaccess in Subrion CMS 4.2.1 allows XSS because it does not block .html file uploads (but does block, for example, .htm file uploads).
- CVSS 3.0
- 6.1 MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 3.67% probability · 90th percentile
- Public exploits
- 1 in Exploit-DB · first 6 August 2018
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- intelliants/subrion
- Source
- cve@mitre.org
EPSS 3.7% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- https://github.com/intelliants/subrion/commit/cb10ac2294cb2c3a6d2159f9a2bb8c58a2a10a47Patch, Third Party Advisory
- https://github.com/intelliants/subrion/issues/773Third Party Advisory
- https://www.exploit-db.com/exploits/45150/Exploit, Third Party Advisory, VDB Entry
- https://github.com/intelliants/subrion/commit/cb10ac2294cb2c3a6d2159f9a2bb8c58a2a10a47Patch, Third Party Advisory
- https://github.com/intelliants/subrion/issues/773Third Party Advisory
- https://www.exploit-db.com/exploits/45150/Exploit, Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.