CVE-2021-40960: Galera WebTemplate 1.0 is affected by a directory traversal vulnerability that could reveal information from /etc/passwd and /etc/shadow.

PriorityP357critical9.8CVSS 3.1

AVNACLPRNUINSUCHIHAH

EXPLOIT

EPSS

9.77%

94.9th percentile

Galera WebTemplate 1.0 is affected by a directory traversal vulnerability that could reveal information from /etc/passwd and /etc/shadow.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
galera	galera_webtemplate	—	—

Detection & IOCsextracted from sources · hover to see the quote

url{{BaseURL}}/GallerySite/filesrc/fotoilan/388/middle//.%252e/.%252e/.%252e/.%252e/.%252e/.%252e/.%252e/etc/passwd↗

path/GallerySite/filesrc/fotoilan/388/middle//.%252e/.%252e/.%252e/.%252e/.%252e/.%252e/.%252e/etc/passwd↗

→HTTP GET request to the double-percent-encoded traversal path under /GallerySite/filesrc/ returning HTTP 200 with root passwd entry indicates successful exploitation. ↗
→Match on regex pattern 'root:.*:0:0:' in HTTP 200 response body to confirm /etc/passwd disclosure via directory traversal. ↗
→The traversal payload uses double URL-encoding (%252e instead of %2e / .) to bypass path normalization — look for %252e sequences in access logs targeting /GallerySite/filesrc/. ↗

·Vulnerability is unauthenticated (PR:N, UI:N) and network-reachable (AV:N), meaning no credentials or user interaction are required to exploit it. ↗
·Affected product is specifically Galera WebTemplate version 1.0; the traversal path is fixed and tied to the /GallerySite/filesrc/fotoilan/388/middle/ endpoint. ↗

CVSS provenance

nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvdv2.07.5HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P

CVEs like this are exactly what “Exploited This Week” covers.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.