Security Digest · Vulnerability record
CVE-2024-28698: CLSA Directory Traversal vulnerability
Directory Traversal vulnerability in Marimer LLC CSLA .Net before 8.0 allows a remote attacker to execute arbitrary code via a crafted script to the MobileFormatter component.
CVSS 9.3 Critical EPSS 1.5% · p74
Should you act?
Critical and remotely reachable
No known exploitation yet, but it is network-reachable without credentials. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.
- Not in CISA KEV, but CISA’s SSVC assessment records a public proof-of-concept, so attack code exists.
- EPSS 1.5%, percentile 74: FIRST’s model estimates a 1.5% chance of exploitation activity in the next 30 days, higher than 74% of all scored CVEs (moderate). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes
Csla(NuGet) < 5.5.4, fixed in 5.5.4;Csla(NuGet) >= 6.0.0, <= 6.2.2, fixed in 8.0.0;Csla(NuGet) >= 7.0.0, <= 7.0.5, fixed in 8.0.0. Check your lockfile, including transitive dependencies.
What it is
Directory Traversal vulnerability in Marimer LLC CSLA .Net before 8.0 allows a remote attacker to execute arbitrary code via a crafted script to the MobileFormatter component.
From the GitHub advisory
Directory Traversal vulnerability in Marimer LLC CSLA .Net before 8.0 allows a remote attacker to execute arbitrary code via a crafted script to the MobileFormatter component.
Fixes for this issue have been backported to the 5.x, 6.x, and 7.x branches of CSLA. CSLA version 5.5.4 contains a fix. As of time of publication, 6.x and 7.x do not have numbered versions containing the fix but do have fix commits available.
Weakness type: CWE-22.
Product: Csla (NuGet) · Assigned by: mitre · Published: 2024-07-22
Affected and fixed versions
| Ecosystem | Package | Vulnerable | First fixed |
|---|---|---|---|
| NuGet | Csla | < 5.5.4 | 5.5.4 |
| NuGet | Csla | >= 6.0.0, <= 6.2.2 | 8.0.0 |
| NuGet | Csla | >= 7.0.0, <= 7.0.5 | 8.0.0 |
| Vendor | Product | Affected versions (per CVE record) |
|---|---|---|
| n/a | n/a | see vendor advisory |
Severity scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADP | 3.1 | 9.8 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| GitHub | 4.0 | 9.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
- Attack vector: network (remotely reachable)
- Attack complexity: low
- Attack requirements: none
- Privileges required: none (no login)
- User interaction: none
CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.
Exploitation and urgency
- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation poc, automatable yes, technical impact total.
- FIRST EPSS (model of 2026-10-21): 1.49% probability of exploitation activity in the next 30 days; percentile 74.
Timeline
- — CVE record published by mitre
- — GitHub-reviewed advisory GHSA-9xhh-3m78-gvgj published (critical)
- — CVE record last updated
Sources and references
Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.
Vulnerability records
- GitHub Advisory GHSA-9xhh-3m78-gvgj github.com
- CVE.org record CVE-2024-28698 cve.org
- NVD entry CVE-2024-28698 nvd.nist.gov
Other references from the CVE record and advisory
- github.com github.com
- intruder.io intruder.io
- github.com github.com
- github.com github.com
- github.com github.com
- github.com github.com
- github.com github.com