CVE-2014-2861: Incomplete blacklist vulnerability in PaperThin CommonSpot before 7.0.2 and 8.x before 8.0.3 allows remote att

Q: How do I fix CVE-2014-2861?

commonspot content server: upgrade to newer than 7.0.1. Exact commands for each OS are on this page.

Q: Is CVE-2014-2861 being exploited?

CVE-2014-2861 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2014-2861 affect?

CVE-2014-2861 affects commonspot content server. Severity is medium (CVSS 4.3). Incomplete blacklist vulnerability in PaperThin CommonSpot before 7.0.2 and 8.x before 8.0.3 allows remote attackers to conduct cross-site scripting (XSS) attacks via a crafted string, as demonstrated by bypassing a protection mechanism tha

Q: How urgent is CVE-2014-2861?

Priority 36/100. No elevated risk signals yet.

Routine

MEDIUM 4.3UPGRADE

CVE-2014-2861 is a medium-severity flaw (CVSS 4.3) affecting commonspot content server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Incomplete blacklist vulnerability in PaperThin CommonSpot before 7.0.2 and 8.x before 8.0.3 allows remote attackers to conduct cross-site scripting (XSS) attacks via a crafted string, as demonstrated by bypassing a protection mechanism that removes only the "alert" string.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	2.1% (top 18%)
CISA exploited list	No
Published	2014-04-15
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: paperthin

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2014-04-15 23:13 UTCPublished CVE record published
2026-06-17 00:07 UTCUpdated Record last modified

paperthin commonspot content server UPGRADE

Affected: <= 7.0.1 · 8.0.0 · 8.0.1 · 8.0.2

Fixed in: newer than 7.0.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy commonspot-content-server || rpm -q commonspot-content-server || commonspot-content-server --version

2. UPGRADE to newer than 7.0.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade commonspot-content-server

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade commonspot-content-server

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2014-2861?

commonspot content server: upgrade to newer than 7.0.1. Exact commands for each OS are on this page.

Is CVE-2014-2861 being exploited?

CVE-2014-2861 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2014-2861 affect?

CVE-2014-2861 affects commonspot content server. Severity is medium (CVSS 4.3). Incomplete blacklist vulnerability in PaperThin CommonSpot before 7.0.2 and 8.x before 8.0.3 allows remote attackers to conduct cross-site scripting (XSS) attacks via a crafted string, as demonstrated by bypassing a protection mechanism tha

How urgent is CVE-2014-2861?

Priority 36/100. No elevated risk signals yet.

Related CVEs

CVE-2014-2874 HIGH 10.0 UPGRADE PaperThin CommonSpot before 7.0.2 and 8.x before 8.0.3 allows remote attackers to execute arbitrary code via s
CVE-2014-2873 MEDIUM 5.0 UPGRADE PaperThin CommonSpot before 7.0.2 and 8.x before 8.0.3 does not require authentication for access to log files
CVE-2014-2872 MEDIUM 5.0 UPGRADE PaperThin CommonSpot before 7.0.2 and 8.x before 8.0.3 allows remote attackers to obtain potentially sensitive
CVE-2014-2871 MEDIUM 5.0 UPGRADE PaperThin CommonSpot before 7.0.2 and 8.x before 8.0.3 relies on an HTTP session for entering credentials on l
CVE-2014-2870 MEDIUM 5.0 UPGRADE The default configuration of PaperThin CommonSpot before 7.0.2 and 8.x before 8.0.3 uses cleartext for storage

References

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