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CVE Record

CVE-2018-16988: An issue was discovered in Open XDMoD through 7.5.0.

An issue was discovered in Open XDMoD through 7.5.0. An authentication bypass (account takeover) exists due to a weak password reset mechanism. A brute-force attack against an MD5 rid value requires only 600 guesses in the plausible situation where the attacker knows that the victim has started a password-reset process (pass_reset.php, password_reset.php, XDUser.php) in the past few minutes.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

Open XDMoD through 7.5.0 had a weak password reset design that could let an attacker take over an account. The attack window depends on knowing a user recently started password reset, but the source says only about 600 guesses may be needed in that situation.

Executive priority

Treat this as high priority if Open XDMoD is in use. The issue can lead to account takeover, but urgency depends on whether affected versions are deployed and whether reset functionality is externally reachable.

Technical view

The CVE describes authentication bypass via the password reset flow in pass_reset.php, password_reset.php, and XDUser.php. The reset identifier is described as an MD5 rid value with a small practical search space when a reset was initiated within the prior few minutes.

Likely exposure

Exposure is limited to organizations running Open XDMoD through 7.5.0, especially where password reset endpoints are reachable by untrusted users. The provided sources do not identify specific deployments, package names, or fixed versions.

Exploitation context

The source bundle does not show CISA KEV listing or active exploitation evidence. A public GitHub reference exists, and the CVE description indicates practical guessing is possible during a narrow password-reset timing window.

Researcher notes

The evidence is concise and lacks CVSS, CWE, and patch metadata. Analysis should avoid assuming affected packages beyond Open XDMoD through 7.5.0. Validate against vendor release notes or repository history before assigning remediation status.

Mitigation direction

  • Identify any Open XDMoD deployments and confirm their versions.
  • Check Open XDMoD vendor guidance for fixed versions or reset-flow remediation.
  • Prioritize upgrading affected instances through 7.5.0 if a supported fix is available.
  • Restrict access to password reset endpoints where operationally feasible.
  • Review accounts for suspicious password reset and login activity.

Validation and detection

  • Inventory systems running Open XDMoD and record exposed reset endpoints.
  • Confirm whether any instance is version 7.5.0 or earlier.
  • Review application logs for unusual password-reset attempts around user reset requests.
  • Verify vendor documentation before declaring a system fixed.
  • Check whether compensating access controls cover reset routes.
Prepared
Confidence
medium
Sources
3

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

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description · low confidence lookup

Credential and access behavior lookup

The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. 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-2018-16988 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
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.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

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