CVE-2023-1718
Improper file stream access in /desktop_app/file.ajax.php?action=uploadfile in Bitrix24 22.0.300 allows unauthenticated remote attackers to cause denial-of-service via a crafted "tmp_url".
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 28.7%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
Description
Improper file stream access in /desktop_app/file.ajax.php?action=uploadfile in Bitrix24 22.0.300 allows unauthenticated remote attackers to cause denial-of-service via a crafted "tmp_url".
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 28.69% probability · 98th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-835
- Affected
- bitrix24/bitrix24
- Source
- info@starlabs.sg
EPSS moved from 28.7% on 2 November 2026 to 28.7% on 3 November 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
References
- https://starlabs.sg/advisories/23/23-1718/Exploit, Third Party Advisory
- https://starlabs.sg/advisories/23/23-1718/Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.