Stupid Simple CMS: Improper Authentication
CVE-2023-6907 is a critical-severity improper authentication vulnerability in Stupid Simple CMS from Codelyfe, with a CVSS 3.1 base score of 9.1 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected Stupid Simple CMS versions: 1.2.0; 1.2.1; 1.2.2, and others listed below. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 1.2% chance of exploitation within 30 days, higher than 69% of scored CVEs.
Critical severity: a successful attack would have severe impact.
What to do
- Check which version of Stupid Simple CMS you run against the affected versions below, and install the vendor's latest release.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Codelyfe | Stupid Simple CMS | 1.2.0; 1.2.1; 1.2.2; 1.2.3; 1.2.4 | 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
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- NoneNo data is disclosed.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 5.4 | Medium | CNA (vuldb.com) |
| CVSS 3.1 | 9.1 | Critical | NVD |
| CVSS 2.0 | 4.8 | Medium | CNA (vuldb.com) |
Official description
A vulnerability has been found in codelyfe Stupid Simple CMS up to 1.2.4 and classified as critical. Affected by this vulnerability is an unknown functionality of the file /file-manager/delete.php of the component Deletion Interface. The manipulation of the argument file leads to improper authentication. The exploit has been disclosed to the public and may be used. The identifier VDB-248269 was assigned to this vulnerability.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Authentication
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
How developers prevent this class of flaw
- Use an authentication framework or library such as the OWASP ESAPI Authentication feature.
Timeline
- CVE record published.
- Record last changed materially (score, affected products, status or references).
References
Third-party and government advisories
- vuldb.com/?ctiid.248269Permissions Required, Third Party Advisory
- vuldb.com/?id.248269Permissions Required, Third Party Advisory
Technical write-ups (may include proof of concept)
- github.com/g1an123/POC/blob/main/Unauthorized%20file%20deletion.mdExploit, Third Party Advisory
Other vulnerabilities in Stupid Simple CMS
- 9.8 Critical severity
- 9.8 Critical severity
Recent Improper Authentication vulnerabilities
- 9.8 Critical severity
- 8.8 High severity
- 8.2 High severity
- 9.8 Critical severity
- 9.8 Critical severity
- 8.8 High severity
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