CVE-2023-46858 json
Moodle 4.3 allows /grade/report/grader/index.php?searchvalue= reflected XSS when logged in as a teacher.
published 2023-10-29 3 y ago modified 2026-09-08 2 mo ago also BIT-moodle-2023-46858 , EUVD-2023-51024
- cvss
- 5.4
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 54%
- public exploits
- 0
- none known
Summary
Moodle 4.3 allows /grade/report/grader/index.php?searchvalue= reflected XSS when logged in as a teacher. NOTE: the Moodle Security FAQ link states "Some forms of rich content [are] used by teachers to enhance their courses ... admins and teachers can post XSS-capable content, but students can not."
Patch / fix
- bitnami moodle 4.3.1
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.73% chance of exploitation in the next 30 days, higher than 54% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- packetstormsecurity.com https://packetstormsecurity.com/files/175277/Moodle-4.3-Cross-Site-Scripting.html referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
| OSV | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | moodle | >=4.3.0, <4.3.1 |
4.3.1 |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
packetstormsecurity.com
/files/175277/Moodle-4.3-Cross-Site-Scripting.html
exploit, third-party-advisory, vdb-entry, advisory
-
gist.github.com
/Abid-Ahmad/12d2b4878eb731e8871b96b7d55125cd
broken-link, web
-
docs.moodle.org
/403/en/Security_FAQ#I_have_discovered_Cross_Site_Scripting_.28XSS.29_is_possible_with_Moodle
product, web
-
nvd.nist.gov
/vuln/detail/CVE-2023-46858
web
Sources
- CVE List CVE-2023-46858
- NVD CVE-2023-46858
- OSV BIT-moodle-2023-46858
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.