Security readout for executives and security teams
Plain-English summary
CVE-2012-10049 is a critical remote code execution issue in legacy WebPageTest 2.6 and earlier. A remote attacker could upload a PHP file through resultimage.php and execute it from a public directory, gaining control under the web server account.
Executive priority
Treat this as urgent for any exposed legacy WebPageTest server. The business risk is full server compromise, and public exploit references increase operational urgency even without KEV-confirmed active exploitation.
Technical view
The flaw is CWE-434: unrestricted upload of a file with a dangerous type. The CVE describes missing validation and sanitization before saving uploads to a web-accessible path. CVSS 4.0 is 9.3 with network, low-complexity, no-privilege, no-user-interaction attack conditions.
Likely exposure
Exposure is most likely in self-hosted, legacy WebPageTest deployments, especially internet-facing instances running version 2.6 or earlier with resultimage.php reachable and PHP execution enabled in upload paths.
Exploitation context
The bundle includes Metasploit and Exploit-DB references, so public exploit material exists. KEV is false, and the provided sources do not prove active exploitation in the wild.
Researcher notes
The affected-version data is somewhat inconsistent: the narrative says 2.6 and earlier, while the structured affected entry lists version 0 with default unaffected. Use the narrative and vendor confirmation when scoping.
Mitigation direction
- Inventory WebPageTest deployments and confirm whether any run version 2.6 or earlier.
- Check current vendor guidance before choosing a final patch or upgrade path.
- Restrict public access to legacy WebPageTest instances until remediation is complete.
- Disable PHP execution in directories that store uploaded files where feasible.
- Monitor web and security logs for suspicious access to resultimage.php.
Validation and detection
- Confirm WebPageTest version and whether resultimage.php exists on each instance.
- Verify internet exposure through asset inventory and perimeter scanning results.
- Review upload directories for unexpected PHP files or recent unauthorized changes.
- Check web server logs for anomalous POST requests to resultimage.php.
- Validate controls prevent uploaded files from executing as PHP.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-434: File access and web shell behavior lookup
File traversal and upload weaknesses can lead teams to review file, web shell, execution, and collection telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupFile access behavior lookup
The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2012-10049 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.3 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N——VulnCheckVulnerability scoring details
Base CVSS 4.0 score
9.3CriticalVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/multi/http/webpagetest_upload_exec.rbCVE reference, VulnCheck · exploit
- https://www.exploit-db.com/exploits/19790CVE reference, VulnCheck · exploit
- https://www.exploit-db.com/exploits/20173CVE reference, VulnCheck · exploit
- https://www.broadcom.com/support/security-center/attacksignatures/detail?asid=26148CVE reference, VulnCheck · third-party-advisory
- https://github.com/catchpoint/WebPageTestCVE reference, VulnCheck · product
- https://www.vulncheck.com/advisories/webpagetest-arbitrary-php-file-upload-rceCVE reference, VulnCheck · third-party-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.