SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2018-1133

A Teacher creating a Calculated question can intentionally cause remote code execution on the server, aka eval injection.

EXPLOITHIGH 8.8EPSS 31.3%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 31.3%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.

Description

An issue was discovered in Moodle 3.x. A Teacher creating a Calculated question can intentionally cause remote code execution on the server, aka eval injection.

CVSS 3.0
8.8 HIGHCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
31.32% probability · 98th percentile
Public exploits
1 in Exploit-DB · first 15 March 2019
CISA KEV
Not listed
Weakness
CWE-94
Affected
moodle/moodle
Source
secalert@redhat.com
EPSS trend
0%18%35%21 September 2026: 24.58%22 September 2026: 31.88%27 October 2026: 31.32%21 September 202627 October 2026

EPSS moved from 24.6% on 21 September 2026 to 31.3% on 27 October 2026, peaking at 31.9% on 22 September 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-46551source ↗Moodle 3.4.1 - Remote Code Executionphp · Darryn Tenwebapps15 March 2019no

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.