CVE-2026-8727
Essential information
- Published
- 19/05/2026 10:16
- Modified
- 19/05/2026 14:47
- Author
- —
- Creator
- —
- CVSS
- 7.1 HIGH (v3) 7.1 HIGH (v4.0)
- CISA KEV
- No
- CWE
- —
- CVSS vector
-
—
—
CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:A/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS metrics
- Access vector
- —
- Access complexity
- —
- Authentication
- —
- Confidentiality impact
- —
- Integrity impact
- —
- Availability impact
- —
- Exploitability
- —
- Remediation level
- —
- Report confidence
- —
- Temporal score
- —
- Attack vector
- —
- Attack complexity
- —
- Privileges required
- —
- User interaction
- —
- Scope
- —
- Confidentiality impact
- —
- Integrity impact
- —
- Availability impact
- —
- Exploit code maturity
- —
- Remediation level
- —
- Report confidence
- —
- Temporal score
- —
- Attack vector
- NETWORK
- Attack complexity
- HIGH
- Attack requirements
- PRESENT
- Privileges required
- HIGH
- User interaction
- ACTIVE
- Confidentiality (V)
- HIGH
- Confidentiality (S)
- LOW
- Integrity (V)
- HIGH
- Integrity (S)
- LOW
- Availability (V)
- HIGH
- Availability (S)
- LOW
- Exploit maturity
- NOT_DEFINED
Description
The Crawler extension passes the X-T3Crawler-Meta response header from crawled URLs directly to PHP's unserialize(). An attacker controlling a crawled endpoint can inject arbitrary serialized PHP objects, leading to Remote Code Execution on the TYPO3 server. Exploitation requires administrative privileges to configure a crawler-enabled page and trigger the crawl via a Scheduler task.
NVD status
- Status
- Deferred — CVE has been recently published to the CVE List and has been received by the NVD.
- Source
- f4fb688c-4412-4426-b4b8-421ecf27b14a
- NVD
- View on NVD
Affected products (CPE)
| Product | CPE |
|---|---|
| typo3 / typo3 | cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:* |
| typo3 / crawler extension | cpe:2.3:a:typo3:crawler_extension:*:*:*:*:*:*:*:* |