SharePoint Manager Plus: Improper Restriction of XML External Entity Reference
CVE-2024-10839 is a high-severity improper restriction of XML external entity reference vulnerability in SharePoint Manager Plus from ManageEngine, with a CVSS 3.1 base score of 8.1 out of 10. It can be exploited remotely over the network by an attacker with a low-privileged account, without any action from a user. Affected SharePoint Manager Plus versions: 4503 and earlier. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 2.38% chance of exploitation within 30 days, higher than 84% of scored CVEs.
High severity with no evidence of exploitation so far.
What to do
- Check which version of SharePoint Manager Plus you run against the affected versions below, and install the vendor's latest release.
- Read the advisory on manageengine.com for workarounds and exact fixed builds.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| ManageEngine | SharePoint Manager Plus | 4503 and earlier | Not stated |
| Zoho | Manageengine Sharepoint Manager Plus | 4.0; 4.1; 4.2; 4.3; 4.4; 4.5 | Not stated |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- LowA basic user account is enough.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- NoneNothing can be modified.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 8.5 | High | CNA |
| CVSS 3.1 | 8.1 | High | NVD |
Official description
Zohocorp ManageEngine SharePoint Manager Plus versions 4503 and prior are vulnerable to authenticated XML External Entity (XXE) in the Management option.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Restriction of XML External Entity Reference
The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output.
How developers prevent this class of flaw
- Many XML parsers and validators can be configured to disable external entity expansion.
More Improper Restriction of XML External Entity Reference vulnerabilities (CWE-611)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Other vulnerabilities in SharePoint Manager Plus
- 7.9 High severity
- 8.5 High severity
Recent Improper Restriction of XML External Entity Reference vulnerabilities
- 8.6 High severity
- 9.8 Critical severity
- 9.8 Critical severity
- 7.2 High severity
- 8.0 High severity
- 8.0 High severity
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