CVE-2015-8793

MEDIUMNVD 6.16.1—
EchelonGraph scoreMEDIUM confidence

Score 6.1 from GitHub Security Advisory published 2022-05-17. NVD baseline CVSS 6.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
6.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 6.1Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Cross-site scripting (XSS) vulnerability in program/include/rcmail.php in Roundcube before 1.0.6 and 1.1.x before 1.1.2 allows remote attackers to inject arbitrary web script or HTML via the _mbox parameter in a mail task to the default URL, a different vulnerability than CVE-2011-2937.

CVSS v3
6.1
EG Score
6.1(medium)
EG Risk
33(Track)
EG Risk 33/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity61% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
70%
KEV
Not listed

Published

January 29, 2016

Last Modified

June 17, 2026

References (6)

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
roundcube—1.1.2+dfsg.1-1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
roundcube—1.1.2+dfsg.1-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
roundcube—1.1.2+dfsg.1-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
roundcube—1.1.2+dfsg.1-1—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 6× in last 7d / 26× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 127 total refreshes for this CVE.

  1. 2026-08-21 23:44 UTCEPSS rescore
  2. 2026-08-20 22:50 UTCEPSS rescore
  3. 2026-08-19 16:59 UTCEPSS rescore
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  1. 2026-07-23 14:14 UTCEPSS rescore
  2. 2026-07-23 01:20 UTCEG score recompute
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  5. 2026-07-22 14:04 UTCEPSS rescore
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  20. 2026-07-12 11:38 UTCOSV refresh
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  45. 2026-06-23 17:20 UTCOSV refresh
  46. 2026-06-22 14:23 UTCEPSS rescore
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  70. 2026-06-06 23:29 UTCOSV refresh
  71. 2026-06-06 13:45 UTCEPSS rescore
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  75. 2026-06-04 13:10 UTCEPSS rescore

Frequently asked(5)

What is CVE-2015-8793?
CVE-2015-8793 is a medium vulnerability published on January 29, 2016. Cross-site scripting (XSS) vulnerability in program/include/rcmail.php in Roundcube before 1.0.6 and 1.1.x before 1.1.2 allows remote attackers to inject arbitrary web script or HTML via the _mbox parameter in a mail task to the default URL, a different vulnerability than CVE-2011-2937.
When was CVE-2015-8793 disclosed?
CVE-2015-8793 was first published in the National Vulnerability Database on January 29, 2016, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2015-8793 actively exploited?
CVE-2015-8793 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 29.8% of all scored CVEs.
What is the CVSS score of CVE-2015-8793?
CVE-2015-8793 has a CVSS v3 base score of 6.1 (NVD).
How do I remediate CVE-2015-8793?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2015-8793, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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