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CVE Record

CVE-2018-1000124: I Librarian I-librarian version 4.8 and earlier contains a XML External Entity (XXE) vulnerability in line...

I Librarian I-librarian version 4.8 and earlier contains a XML External Entity (XXE) vulnerability in line 154 of importmetadata.php(simplexml_load_string) that can result in an attacker reading the contents of a file and SSRF. This attack appear to be exploitable via posting xml in the Parameter form_import_textarea.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2018-1000124 affects I Librarian 4.8 and earlier. An attacker who can submit XML through the metadata import form may be able to read files from the server or trigger server-side requests. The public record does not provide CVSS scoring, confirmed exploitation, or a named fixed release.

Executive priority

Treat this as high priority if I Librarian is internet-facing or the import function is broadly accessible. The business risk is server file exposure and SSRF, but urgency is moderated by missing evidence of active exploitation and missing public scoring.

Technical view

The issue is an XXE flaw in importmetadata.php around simplexml_load_string, reached through the form_import_textarea parameter. The documented impact is local file disclosure and SSRF. Source metadata is sparse: affected version text exists in the CVE description, but CPE, CWE, CVSS, and fix details are absent.

Likely exposure

Exposure is likely limited to self-hosted I Librarian deployments running version 4.8 or earlier where attackers can access the metadata import workflow. The sources do not state whether authentication is required or whether the route is normally public.

Exploitation context

The CVE says exploitation is via posting XML in form_import_textarea. There is no KEV listing and no cited source in the bundle confirming active exploitation in the wild.

Researcher notes

Key gaps are authentication context, exact deployment exposure, CVSS, CWE mapping, and fixed-version information. Validate against the GitHub issue and current upstream state before declaring remediation complete.

Mitigation direction

  • Check the upstream project issue and vendor guidance for a fixed release or official remediation.
  • Restrict access to the metadata import feature to trusted administrators only.
  • Disable or remove unused I Librarian instances until remediation is confirmed.
  • Review XML parsing behavior and ensure external entity processing is disabled before re-enabling imports.

Validation and detection

  • Inventory I Librarian deployments and record running versions.
  • Confirm whether version 4.8 or earlier is present.
  • Determine who can reach the metadata import form.
  • Review application code or vendor notes for safe XML parser configuration.
  • Check logs for unusual metadata import activity or unexpected outbound server requests.
Prepared
Confidence
medium
Sources
3

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.

description · low confidence lookup

Cloud metadata behavior lookup

The CVE wording references SSRF or metadata access, so cloud discovery and credential material 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-2018-1000124 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.