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CVE-2021-25970· NVD / CVE Program· CNA Mend

Camaleon CMS - Insufficient Session Expiration after Password Change

Camaleon CMS 0.1.7 to 2.6.0 doesn’t terminate the active session of the users, even after the admin changes the user’s password. A user that was already logged in, will still have access to the application even after the password was changed.

HighCVSS 8.8 · v3.1—No exploit Fix available

Noroxi analysis

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Published
Oct 20, 2021
Updated
Jun 16, 2026
EPSS
1.3% · 69th percentile
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Report tools

JSON

Action score

35

Monitor

Low priority for now.

CVSS
35 / 40 · 8.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 1.3%

CISA SSVC decision

Exploitation
proof of concept
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
8.8
CNA · Mend
8.8
agree

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Affected systems

VendorProduct
tuzitiocamaleon cms

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • tuzitio camaleon cms0.1.7 and later · up to 2.6.0 inclusive

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Mend). Independent of NVD's CPE analysis and usually ahead of it.

  • camaleon_cms camaleon_cms

    • 0.1.7 and later · before unspecifiedaffected
    • unspecified and later · up to and including 2.6.0affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
RubyGemscamaleon_cmsfrom 0.1.7 · before 2.6.0.12.6.0.1

Same product

tuzitio: all records

Other highest-scoring records for the same primary product.

  • CVE-2023-30145Camaleon CMS v2.7.0 was discovered to contain a Server-Side Template Injection (SSTI) vulnerability via the formats parameter.
    53Plan
  • CVE-2024-46986Arbitrary file write leading to RCE in Camaleon CMS
    51Plan
  • CVE-2024-46987Arbitrary path traversal in Camaleon CMS
    34Monitor
  • CVE-2026-1776Camaleon CMS AWS Uploader Authenticated Path Traversal Arbitrary File Read
    24Monitor
  • CVE-2021-25969Camaleon CMS - Stored Cross-Site Scripting (XSS) in Comments
    24Monitor
  • CVE-2018-18260In the 2.4 version of Camaleon CMS, Stored XSS has been discovered.
    24Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
RubyGems:camaleon_cms2.6.0.1Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • A user must open a link or visit a page.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-613 · Insufficient Session Expiration

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records