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CVE Record

CVE-2025-34292: BeWelcome/Rox PHP Object Injection RCE

Rox, the software running BeWelcome, contains a PHP object injection vulnerability resulting from deserialization of untrusted data. User-controlled input is passed to PHP's unserialize(): the POST parameter `formkit_memory_recovery` in \\RoxPostHandler::getCallbackAction and the 'memory cookie' read by \\RoxModelBase::getMemoryCookie (bwRemember). (1) If present, `formkit_memory_recovery` is processed and passed to unserialize(), and (2) restore-from-memory functionality calls unserialize() on the bwRemember cookie value. Gadget chains present in Rox and bundled libraries enable exploitation of object injection to write arbitrary files or achieve remote code execution. Successful exploitation can lead to full site compromise. This vulnerability was remediated with commit c60bf04 (2025-06-16).

CriticalCVSS 9.4Not KEV-listedUpdated
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Glexia's TakeAutomated analysiscritical

Security readout for executives and security teams

Plain-English summary

Rox, the PHP software behind BeWelcome, had unsafe deserialization of user-controlled data. An attacker with low privileges could potentially turn this into arbitrary file writes or remote code execution. The reported impact is full site compromise. A remediation commit is identified, but version-range details are not clearly expressed in the provided sources.

Executive priority

Prioritize immediately if your organization runs Rox or a derivative exposed to users. The business risk is site takeover and data compromise. If Rox is not present, no direct action is indicated beyond confirming the inventory.

Technical view

CVE-2025-34292 is a CWE-502 PHP object injection issue in Rox. User-controlled values from the formkit_memory_recovery POST parameter and bwRemember memory cookie are passed to unserialize(). Available gadget chains in Rox and bundled libraries can enable arbitrary file write or RCE. CVSS 4.0 score is 9.4, with network access, low complexity, and low privileges required.

Likely exposure

Exposure is likely limited to deployments of BeWelcome Rox that include the vulnerable deserialization paths before commit c60bf04. Public affected-version data is incomplete; the source bundle lists version “0” and default status “unaffected,” which is not enough for precise fleet matching.

Exploitation context

The CVSS vector indicates network exploitation with low complexity, no user interaction, and low privileges. Public sources include a technical write-up tagged as exploit, but CISA KEV is false in the provided data, so active exploitation is not established here.

Researcher notes

The core issue is unsafe PHP unserialize on attacker-influenced POST and cookie values. Sources state gadget chains permit file write or RCE. Avoid assuming broad ecosystem exposure: the record identifies Rox/BeWelcome, but precise affected releases are not clearly documented in the provided bundle.

Mitigation direction

  • Check whether Rox includes remediation commit c60bf04 from 2025-06-16.
  • Update Rox to a vendor-maintained revision containing the fix.
  • Review vendor and project guidance for supported upgrade paths.
  • Treat exposed Rox sites as high priority until version status is confirmed.

Validation and detection

  • Inventory any BeWelcome Rox deployments and forks.
  • Compare deployed code against commit c60bf04.
  • Inspect code paths handling formkit_memory_recovery and bwRemember for unsafe unserialize use.
  • Review application logs for suspicious requests involving affected parameters or cookies.
Prepared
Confidence
medium
Sources
6

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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 · medium confidence lookup

CWE-502: Code execution behavior lookup

Code execution and unsafe deserialization weaknesses often justify reviewing execution behavior and process 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.

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description · low confidence lookup

Execution 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 lookup
cve · low confidence lookup

CVE-2025-34292 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Critical
CVSS
9.4 (4.0)
Known Exploited
No
Published

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Official CVE source material

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.

1CVSS vectors
3Timeline events
1ADP providers
5Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: pocAutomatable: noTechnical Impact: total

CVSS vector scores

1 official score

We 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.

ScoreVersionSeverityVectorExploitImpactSource
9.4CVSS 4.0CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H——VulnCheck

Vulnerability scoring details

Base CVSS 4.0 score

9.4Critical
CVSS 4.0 vector shape for CVE-2025-34292Attack VectorAttack ComplexityAttack RequirementsPrivileges RequiredUser InteractionVS ConfidentialityVS IntegrityVS AvailabilitySS ConfidentialitySS IntegritySS Availability

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Attack Requirements
NonePresent
Privileges Required
NoneLowHigh
User Interaction
NonePassiveActive
VS Confidentiality
HighLowNone
VS Integrity
HighLowNone
VS Availability
HighLowNone
SS Confidentiality
HighLowNone
SS Integrity
HighLowNone
SS Availability
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
BeWelcomeRox0unaffected
Weakness

CWE details

CWE-502

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-502 · source CWE mapping

Deserialization of Untrusted Data

Deserialization of Untrusted Data represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

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