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OpenText Flipper CVE-2025-8048

MEDIUM
External Control of File Name or Path (CWE-73)
2025-10-20 security@opentext.com
5.3
CVSS 4.0 · Vendor: opentext
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Authenticate to Flipper application
  2. Exploit
    Submit stored local file path as document
  3. Execution
    Request stored document ID
  4. Impact
    Download arbitrary server file

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V5 - File Handling File name/path control
Exploitation Conditions

Exploitation requires the attacker to use Flipper's document-storage feature: they must be able to submit/store a local file path and then request it back by its stored document ID - i.e., abuse of the stored-document download function rather than an unauthenticated request against a default endpoint. Limiting factors: the workflow implies an application user account with permission to create stored documents (contradicting the vendor's PR:N), and only version 3.1.2 is listed as affected. The impact is confined to reading files accessible to the Flipper service account; write or code-execution impact is not described.

Impact

This is a medium-severity information-disclosure flaw (vendor CVSS 4.0 base 5.3) with low real-world urgency. Exploitation signals are weak: EPSS is 0.29% (20th percentile), there is no CISA KEV listing, and no public exploit code was identified - mapping to 'no public exploit identified at time of analysis.' The vendor-supplied CVSS 4.0 vector claims AV:N/PR:N (network, unauthenticated), which per the precision rule would read as unauthenticated; however, the description states a user must 'submit a stored local file path' and then retrieve it via a stored document ID, which strongly implies the attacker must already be an authenticated application user able to create/store documents. This is a conflict: CVSS asserts PR:N but the described workflow implies authenticated access - verify privilege requirement with OpenText. The vector also sets VI:L and VA:L (integrity/availability impact), which is unusual for a read-only file-download primitive and may overstate impact; the realistic impact is confidentiality (arbitrary file read). Net: a genuine but low-priority issue - patch in normal cycle, not an emergency.

Exploit ScenarioDerived

An application user stores a document whose file path points to a sensitive local file on the server (e.g., a configuration or credential file) instead of a legitimate document, then issues a download request referencing that stored document ID and retrieves the targeted file. No public proof-of-concept exploit is known. The network attack vector with low complexity makes the request itself trivial, but the attacker needs the ability to submit stored paths, limiting it to users with application access.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.3% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 08, 2026

Path traversal in OpenText Flipper 3.1.2 lets an application user submit a stored local file path through the product's document-storage feature and then retrieve that file from the underlying system by requesting the saved document ID. Exploitation is not unauthenticated in practice: the documented workflow requires an account able to create stored documents, so the independent assessment rates the vector as PR:L rather than the vendor's PR:N, and the resulting impact is limited to reading files the Flipper service account can access, with no write or code-execution impact described. No public exploit code or active exploitation has been identified at time of analysis, and EPSS is low at 0.29% (20th percentile), making this a medium-severity information-disclosure issue with limited real-world urgency.

RemediationAI

No vendor-released patch version is identified in the available data, so the first step is to consult OpenText Knowledge Base article KB0850531 (https://support.opentext.com/csm?id=ot_kb_unauthenticated&sysparm_article=KB0850531) for the current fixed build and upgrade Flipper 3.1.2 accordingly once a version is published. Until then, apply compensating controls targeting the document-storage workflow: restrict the ability to create stored documents to the smallest set of trusted accounts, since the flaw is only reachable through that feature and reducing the user population cuts the attack surface at the cost of workflow flexibility. Run the Flipper service under a least-privilege account with read access limited to the directories it legitimately needs, which caps what a traversal read can disclose but may require re-permissioning of existing storage paths. Where feasible, validate and canonicalize document paths at submission time and reject values containing traversal sequences or absolute paths outside a designated storage root, understanding that such input filtering must be applied at the application layer and can be bypassed if not implemented comprehensively. Additionally, monitor and log document-ID retrieval requests for paths outside expected storage directories so attempted abuse is detectable.

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Technical ContextAI · show details

The flaw is an instance of CWE-73 (External Control of File Name or Path), the root-cause class in which user-supplied input is used to construct a filesystem path without adequate canonicalization or restriction to an allowed directory. Flipper's document-storage capability accepts a path value, persists it, and later serves the referenced content when the corresponding document ID is requested, so the path supplied at storage time becomes the path read at retrieval time. The affected artifact is identified by CPE cpe:2.3:a:opentext:flipper:3.1.2:*:*:*:*:*:*:* , confirming that only release 3.1.2 is enumerated as vulnerable. The vendor used the CVSS 4.0 framework (base 5.3) while the independent assessment used CVSS 3.1 (AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N); both agree the impact is scope-unchanged and confidentiality-only, with no integrity or availability effect. The practical boundary of the issue is the filesystem permission set of the Flipper service account, which determines which files can be disclosed.

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Severity by source

Vendor (opentext) PRIMARY 5.3 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/S:P/AU:Y/R:U/V:D/RE:M/U:Green
vuln.today AI 4.3 MEDIUM

Workflow requires an authenticated user able to store a document path, so PR:L; primitive is read-only file disclosure, so C:L with I:N/A:N.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (opentext).

CVSS VectorVendor: opentext

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
Passive
Vulnerable system: Confidentiality
Low
Vulnerable system: Integrity
Low
Vulnerable system: Availability
Low
Subsequent system: Confidentiality
None
Subsequent system: Integrity
None
Subsequent system: Availability
None

DescriptionCVE.org

External Control of File Name or Path vulnerability in opentext Flipper allows Path Traversal. The vulnerability could allow a user to submit a stored local file path and then download the specified file from the system by requesting the stored document ID.

This issue affects Flipper: 3.1.2.

Threat Intelligence Overview

EPSS Score
0.3%
Top 80% exploitable
Prevalence
Low
OpenText Flipper is a niche enterprise product with limited deployment footprint
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.3%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

26
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +26
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Path traversal exploits occur when applications use user-controlled input to construct file system paths without proper validation.

Affected Products (CPE)CVE.org

cpe:2.3:a:opentext:flipper:3.1.2:*:*:*:*:*:*:*

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