Security Digest · Vulnerability record
CVE-2023-5688: modoboa Cross-site Scripting vulnerability
Cross-site Scripting (XSS) - DOM in GitHub repository modoboa/modoboa prior to 2.2.2.
CVSS 9.3 Critical EPSS 0.7% · p51
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 0.7%, percentile 51: FIRST’s model estimates a 0.7% chance of exploitation activity in the next 30 days, higher than 51% 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
modoboa(PyPI) < 2.2.2, fixed in 2.2.2. Check your lockfile, including transitive dependencies.
What it is
Cross-site Scripting (XSS) - DOM in GitHub repository modoboa/modoboa prior to 2.2.2.
From the GitHub advisory
Cross-site Scripting (XSS) - DOM in GitHub repository modoboa/modoboa prior to 2.2.2.
Weakness type: CWE-79.
Product: modoboa (PyPI) · Assigned by: @huntrdev · Published: 2023-10-20
Affected and fixed versions
| Ecosystem | Package | Vulnerable | First fixed |
|---|---|---|---|
| PyPI | modoboa | < 2.2.2 | 2.2.2 |
| Vendor | Product | Affected versions (per CVE record) |
|---|---|---|
| modoboa | modoboa/modoboa | unspecified < 2.2.2 |
Severity scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| @huntrdev | 3.0 | 9.8 Critical | CVSS:3.0/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): 0.66% probability of exploitation activity in the next 30 days; percentile 51.
Timeline
- — CVE record published by @huntrdev
- — GitHub-reviewed advisory GHSA-pqgm-9g82-wcm7 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-pqgm-9g82-wcm7 github.com
- CVE.org record CVE-2023-5688 cve.org
- NVD entry CVE-2023-5688 nvd.nist.gov
Other references from the CVE record and advisory
- huntr.com huntr.com
- github.com github.com
- github.com github.com