CVE-2026-48842: roundcube webmail SQL Injection
CVSS: 8.1v3.1HighDeferred
AliasesUBUNTU-CVE-2026-48842DEBIAN-CVE-2026-48842
Published 25-05-2026Last modified 25-09-2026
Vulnerability summary
CVE-2026-48842 is a high (CVSS 8.1) SQL Injection vulnerability in roundcube webmail. EPSS estimates a 0.89% chance of exploitation in the next 30 days, higher than 58.9% of scored vulnerabilities.
CVSS score
8.1/10
010
High · v3.1 (CVE.org)EPSS score
0.89%
0%100%
Low · +0.13 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 2 · Related 1Timeline
- 25-05-2026PublishedVulnerability first disclosed.
- 25-09-2026Last modifiedVulnerability information updated.
Description
Roundcube Webmail 1.6.x before 1.6.16 and 1.7.x before 1.7.1 has Pre-authentication SQL injection in the virtuser_query plugin via a preg_replace() backslash escape bypass.
CVSS metrics
4 scores · 4 sources · 1 versionHigh 8.1Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesAll 4 agree
- OSV · UbuntuEcosystem advisory · calculated8.1HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated8.1HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVDNIST8.1HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.89%
Chance of exploitation in the next 30 days
Percentile
59%
Versus all other CVEs
30-day change
+0.13 pp
From 0.76% on 21-09-2026
21-09-202621-10-2026
EPSS score0.89%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian1 product
- roundcube< 1.6.5+dfsg-1+deb12u9 | < 1.6.16+dfsg-0+deb13u1 | < 1.6.16+dfsg-1
Roundcube1 product
- webmail≥ 1.6.0, < 1.6.16 | ≥ 1.7.0, < 1.7.1
Ubuntu1 product
- roundcubeAll versions (No fix recorded)
3 vendors · 3 products
