SilverStripe CSV Excel Macro Injection

published 2018-01-23 8 y ago modified 2026-06-17 4 mo ago also GHSA-2jvj-mhf2-g99w , EUVD-2022-2006

cvss: 5.5; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.9%; EPSS 0.9% chance of exploitation in 30 days, percentile 59%
public exploits: 0; none known

In the CSV export feature of SilverStripe before 3.5.6, 3.6.x before 3.6.3, and 4.x before 4.0.1, it's possible for the output to contain macros and scripts, which may be executed if imported without sanitization into common software (including Microsoft Excel). For example, the CSV data may contain untrusted user input from the "First Name" field of a user's /myprofile page.

Patch / fix

fixed in 1

packagist silverstripe/framework 3.5.6, 3.6.3, 4.0.1

Exploit prediction

0.90% chance of exploitation in the next 30 days, higher than 59% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

exploit-db.com https://www.exploit-db.com/exploits/43396/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.0	5.5	CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
NVD	2.0	4.3	AV:N/AC:M/Au:N/C:N/I:P/A:N
GitHub	3.0	5.5	CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Affected packages

ecosystem	package	affected	fixed in
packagist	silverstripe/framework	<3.5.6 >=3.6.0, <3.6.3 >=4.0.0, <4.0.1	3.5.6 3.6.3 4.0.1

Classification

Weakness

CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component

References

exploit-db.com /exploits/43396/
exploit, third-party-advisory, vdb-entry
silverstripe.org /download/security-releases/ss-2017-007
web, vendor-advisory
nvd.nist.gov /vuln/detail/CVE-2017-18049
advisory
github.com /silverstripe/silverstripe-framework
package
exploit-db.com /exploits/43396
web

Sources

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.

Summary