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CVE-2024-25973· NVD / CVE Program· CNA SEC-VLab

Multiple Stored Cross-Site Scripting Vulnerabilities

The Frentix GmbH OpenOlat LMS is affected by multiple stored Cross-Site Scripting (XSS) vulnerabilities. An attacker with rights to create or edit groups can create a course with a name that contains an XSS payload. Furthermore, attackers with the permissions to create or rename a catalog (sub-category) can enter unfiltered input in the name field. In addition, attackers who are allowed to create curriculums can also enter unfiltered input in the name field. This allows an attacker to execute stored JavaScript code with the permissions of the victim in the context of the user's browser.

MediumCVSS 5.4 · v3.1—No exploit No fix recorded
Published
Feb 20, 2024
Updated
Jun 17, 2026
EPSS
0.6% · 45th percentile
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Action score

21

Monitor

Low priority for now.

CVSS
21 / 40 · 5.4 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.6%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

Affected systems

VendorProduct
frentixopenolat

Affected versions

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

  • frentix openolatbefore 18.1.6

Versions reported by the vendor

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

  • Frentix GmbH OpenOlat LMS

    • up to and including 18.1.4affected

Same product

frentix: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31946OpenOLAT: Authentication bypass via forged JWT in OIDC implicit flow
    39Monitor
  • CVE-2021-39181Unsafe Deserialization of User Data Using XStream
    36Monitor
  • CVE-2021-39180Path Traversal in Archive Handling Leading to Code Execution
    36Monitor
  • CVE-2026-28228OpenOLAT: Server-Side Template Injection (SSTI) in Velocity templates allows Remote Code Execution
    35Monitor
  • CVE-2021-41242Path Traversal in some REST methods leading to file upload to arbitrary places
    32Monitor
  • CVE-2024-28198XML external entity (XXE) injection in OpenOLAT
    30Monitor

Remediation

Which version to upgrade to

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

No fix version is recorded for this entry. Check the references for vendor advisories.

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.

No commit or PR link among the references.

Credits

All researchers

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

Variant candidates

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

  • CVE-2024-259740 days apartStored Cross-Site Scripting (XSS) within the Media Center
    21Monitor

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.
  • A low-privileged account is enough.
  • A user must open a link or visit a page.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
low · data can be read
Integrity
low · data or configuration can be modified
Availability
none

Impact can extend beyond the vulnerable component (scope changes).

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
Required
Scope
Changed
Confidentiality impact
Low
Integrity impact
Low
Availability impact
None

Weakness class (CWE)

CWE-20 · Improper Input Validation

CVSS vector

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

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.

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

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Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

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